Translate English built from template literals in attributes

i18n-literals now flags a template literal in a UI attribute or prop when
there are words between its values: `Remove ${email}`, `${name} — shared by
${owner}`. It cannot be a catalogue key as written, so neither the key
exemption nor the sentence-shape test applies. A template that is only
punctuation around values, like `${name} (${size})`, is left alone.

The twelve it found are now keys with placeholders: the quota bar title,
the address menu's label, a folder's subfolder unread count, a recipient
chip's remove button, the contact editor's title, shared and available
calendars and address books, the date and time fields' labels, the
attachment title's fallback name, and the free/busy bar. The bar showed
the raw JMAP busyStatus ("confirmed") and now says Busy, Tentative or
Unavailable.

11 new keys in all nine catalogues. Remove {address}, Date, Time, Busy and
Tentative already existed.

web/src/locales/de.ts

@@ -1223,6 +1223,17 @@ export const catalog: Catalog = {
     "Send now instead": "Stattdessen jetzt senden",
     "Switch to plain text": "Zu Nur-Text wechseln",
     "Switch to rich text": "Zu formatiertem Text wechseln",
+    "{used} of {total} used": "{used} von {total} belegt",
+    "Actions for {address}": "Aktionen für {address}",
+    "{here} here, {inSubfolders} in subfolders": "{here} hier, {inSubfolders} in Unterordnern",
+    "Edit {name}": "{name} bearbeiten",
+    "{name} — shared by {owner}": "{name} — freigegeben von {owner}",
+    "{name} — from {owner}": "{name} — von {owner}",
+    "{label} (date)": "{label} (Datum)",
+    "{label} (time)": "{label} (Uhrzeit)",
+    "{status}: {start} – {end}": "{status}: {start} – {end}",
+    "Unavailable": "Nicht verfügbar",
+    "Attachment": "Anhang",
     "QR code": "QR-Code",
     "Draft discarded": "Entwurf verworfen",
     "Draft saved": "Entwurf gespeichert",