Stop naming every palette in the credit line

The hint under the theme picker listed the third-party palettes by name.
That sentence is translated into nine languages, so every palette added
meant rewriting it, retranslating it nine times, and leaving the previous
version behind as a stale key nothing looks up.

It now describes the rule instead of enumerating the cases: a palette
named after another project is that project's work, used under its own
licence. True of the four here, true of the next one, and true without
saying "MIT" for a palette that might not be. The names are already in
Settings beside each swatch and in NOTICE with their copyright lines,
which is where a credit belongs.

Swapped rather than added in all nine catalogues, so the old key is gone
rather than left stale: 1,255 of 1,279 translated per locale, unchanged,
and the 41 pre-existing stale keys are neither added to nor cleaned up
here.

web/src/locales/de.ts

@@ -1155,7 +1155,7 @@ export const catalog: Catalog = {
     "Counts people rather than headers, so one address in To and nine in Cc is a message to ten. Catches a reply-all onto a long thread.": "Zählt Personen statt Kopfzeilen: eine Adresse in An und neun in Cc ergeben eine Nachricht an zehn. Erfasst ein Allen-Antworten auf einen langen Thread.",
     "Date received": "Empfangsdatum",
     "Date sent": "Sendedatum",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula, Gruvbox, Rosé Pine und Tokyo Night sind das Werk ihrer eigenen Projekte und werden unter der MIT-Lizenz verwendet; die Abstufungen zwischen ihren veröffentlichten Farben sind davon abgeleitet, und jede einzelne wird auf Kontrast geprüft. Die Akzentfarbe unten gilt weiterhin über jeder von ihnen.",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "Paletten, die nach einem anderen Projekt benannt sind, stammen von diesem Projekt und werden unter dessen eigener Lizenz verwendet; die Abstufungen zwischen den veröffentlichten Farben sind abgeleitet, und jede davon wird auf Kontrast geprüft. Die Akzentfarbe unten gilt weiterhin über jeder von ihnen.",
     "Earlier": "Früher",
     "Every folder": "Jeder Ordner",
     "Everyone addressed will receive this.": "Alle Adressierten erhalten dies.",

web/src/locales/es.ts

@@ -1111,7 +1111,7 @@ export const catalog: Catalog = {
     "Date received": "Fecha de recepción",
     "Date sent": "Fecha de envío",
     "Day view": "Vista de día",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula, Gruvbox, Rosé Pine y Tokyo Night son obra de sus propios proyectos y se usan bajo la licencia MIT; los tonos intermedios entre sus colores publicados son derivados, y todos se comprueban en cuanto a contraste. El color de acento de abajo sigue aplicándose sobre cualquiera de ellos.",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "Las paletas que llevan el nombre de otro proyecto son obra de ese proyecto y se usan bajo su propia licencia; los tonos intermedios entre sus colores publicados son derivados, y cada uno se comprueba para el contraste. El color de acento de abajo sigue aplicándose sobre cualquiera de ellas.",
     "Earlier": "Antes",
     "Every folder": "Todas las carpetas",
     "Everyone addressed will receive this.": "Todos los destinatarios lo recibirán.",

web/src/locales/fr.ts

@@ -1116,7 +1116,7 @@ export const catalog: Catalog = {
     "Date received": "Date de réception",
     "Date sent": "Date d'envoi",
     "Day view": "Vue jour",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula, Gruvbox, Rosé Pine et Tokyo Night sont l'œuvre de leurs propres projets et sont utilisés sous licence MIT ; les nuances entre leurs couleurs publiées en sont dérivées, et chacune est vérifiée pour le contraste. La couleur d'accent ci-dessous s'applique toujours par-dessus n'importe laquelle d'entre elles.",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "Les palettes portant le nom d'un autre projet sont l'œuvre de ce projet et sont utilisées sous sa propre licence ; les nuances intermédiaires entre leurs couleurs publiées sont dérivées, et chacune est vérifiée pour le contraste. La couleur d'accentuation ci-dessous s'applique toujours par-dessus n'importe laquelle d'entre elles.",
     "Earlier": "Plus tôt",
     "Every folder": "Tous les dossiers",
     "Everyone addressed will receive this.": "Tous les destinataires le recevront.",

web/src/locales/ja.ts

@@ -1119,7 +1119,7 @@ export const catalog: Catalog = {
     "Date received": "受信日時",
     "Date sent": "送信日時",
     "Day view": "日表示",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula、Gruvbox、Rosé Pine、Tokyo Night はそれぞれのプロジェクトの成果物で、MIT ライセンスのもとで利用しています。公開された色の中間の階調は派生させたもので、いずれもコントラストを確認しています。下のアクセントカラーはどの配色の上にも適用されます。",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "他のプロジェクトの名前が付いたパレットは、そのプロジェクトの成果物であり、そのプロジェクト自身のライセンスのもとで使用しています。公開されている色の中間の階調は派生させたもので、いずれもコントラストを検証しています。下のアクセントカラーは、どのパレットの上にも適用されます。",
     "Earlier": "これより前",
     "Every folder": "すべてのフォルダー",
     "Everyone addressed will receive this.": "宛先の全員がこれを受け取ります。",

web/src/locales/nl.ts

@@ -1107,7 +1107,7 @@ export const catalog: Catalog = {
     "Date received": "Ontvangstdatum",
     "Date sent": "Verzenddatum",
     "Day view": "Dagweergave",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula, Gruvbox, Rosé Pine en Tokyo Night zijn het werk van hun eigen projecten en worden gebruikt onder de MIT-licentie; de tinten tussen hun gepubliceerde kleuren zijn daarvan afgeleid, en elk daarvan wordt op contrast gecontroleerd. De accentkleur hieronder geldt nog steeds over elk ervan.",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "Paletten die naar een ander project zijn genoemd, zijn het werk van dat project en worden gebruikt onder de eigen licentie daarvan; de tinten tussen de gepubliceerde kleuren zijn afgeleid en elk daarvan wordt op contrast gecontroleerd. De accentkleur hieronder geldt nog steeds over elk ervan.",
     "Earlier": "Eerder",
     "Every folder": "Elke map",
     "Everyone addressed will receive this.": "Iedereen die is geadresseerd ontvangt dit.",

web/src/locales/pt-BR.ts

@@ -1114,7 +1114,7 @@ export const catalog: Catalog = {
     "Date received": "Data de recebimento",
     "Date sent": "Data de envio",
     "Day view": "Visualização de dia",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula, Gruvbox, Rosé Pine e Tokyo Night são obra dos seus próprios projetos e são usados sob a licença MIT; os tons entre as cores publicadas por eles são derivados, e cada um deles é verificado quanto ao contraste. A cor de destaque abaixo continua se aplicando sobre qualquer um deles.",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "As paletas que levam o nome de outro projeto são obra desse projeto e são usadas sob a licença dele; os tons entre as cores publicadas são derivados, e cada um é verificado quanto ao contraste. A cor de destaque abaixo continua se aplicando sobre qualquer uma delas.",
     "Earlier": "Antes",
     "Every folder": "Todas as pastas",
     "Everyone addressed will receive this.": "Todos os destinatários receberão isto.",

web/src/locales/ru.ts

@@ -1113,7 +1113,7 @@ export const catalog: Catalog = {
     "Date received": "Дата получения",
     "Date sent": "Дата отправки",
     "Day view": "День",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula, Gruvbox, Rosé Pine и Tokyo Night созданы своими проектами и используются по лицензии MIT; оттенки между опубликованными цветами выведены из них, и каждый проверен на контраст. Акцентный цвет ниже по-прежнему применяется поверх любой из тем.",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "Палитры, названные в честь другого проекта, созданы этим проектом и используются по его собственной лицензии; оттенки между опубликованными цветами выводятся расчётом, и каждый из них проверяется на контраст. Акцентный цвет ниже по-прежнему применяется поверх любой из них.",
     "Earlier": "Раньше",
     "Every folder": "Все папки",
     "Everyone addressed will receive this.": "Это получат все указанные адресаты.",

web/src/locales/uk.ts

@@ -1107,7 +1107,7 @@ export const catalog: Catalog = {
     "Date received": "Дата отримання",
     "Date sent": "Дата надсилання",
     "Day view": "День",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula, Gruvbox, Rosé Pine і Tokyo Night створені власними проєктами й використовуються за ліцензією MIT; відтінки між опублікованими кольорами виведені з них, і кожен перевірено на контраст. Акцентний колір нижче й далі застосовується поверх будь-якої з тем.",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "Палітри, названі на честь іншого проєкту, є роботою цього проєкту й використовуються за його власною ліцензією; відтінки між опублікованими кольорами обчислюються, і кожен із них перевіряється на контраст. Акцентний колір нижче й надалі застосовується поверх будь-якої з них.",
     "Earlier": "Раніше",
     "Every folder": "Усі теки",
     "Everyone addressed will receive this.": "Це отримають усі зазначені адресати.",

web/src/locales/zh-Hans.ts

@@ -1118,7 +1118,7 @@ export const catalog: Catalog = {
     "Date received": "接收日期",
     "Date sent": "发送日期",
     "Day view": "日视图",
-    "Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.": "Dracula、Gruvbox、Rosé Pine 和 Tokyo Night 均由各自的项目创作，依 MIT 许可证使用；其公布配色之间的过渡色为衍生所得，且每一种都经过对比度检查。下方的强调色仍会应用于其中任意一种之上。",
+    "Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.": "以其他项目命名的配色方案是该项目的作品，按其自身的许可证使用；已发布颜色之间的过渡色是推导得出的，并且每一种都经过对比度检查。下方的强调色仍会应用于其中任何一种配色方案。",
     "Earlier": "更早",
     "Every folder": "所有文件夹",
     "Everyone addressed will receive this.": "所有收件人都会收到此邮件。",

web/src/views/settings/AppearanceSettings.tsx

@@ -83,7 +83,7 @@ export function AppearanceSettings() {
         })}
       </div>
       <p className="hint" style={{ marginTop: 10 }}>
-        {translate("Dracula, Gruvbox, Rosé Pine and Tokyo Night are the work of their own projects and are used under the MIT licence; the shades between their published colours are derived, and every one of them is checked for contrast. The accent colour below still applies over any of them.")}
+        {translate("Palettes named after another project are that project's work, used under its own licence; the shades between their published colours are derived, and every one is checked for contrast. The accent colour below still applies over any of them.")}
       </p>
       <Switch
         checked={s.themeMessageBody}