Use American English spelling throughout

web/src/lib/languages.ts

@@ -14,7 +14,7 @@
  * is the reverse, which is why `uiLanguage` and `locale` are separate settings
  * rather than one.
  *
- * Adding a language means adding its catalogue and then adding it here, in
+ * Adding a language means adding its catalog and then adding it here, in
  * that order. RTL languages — Arabic, Hebrew, Persian — need bidi and layout
  * work well beyond strings, so they are not simply a matter of another entry.
  */
@@ -26,8 +26,8 @@ export interface UiLanguage {
   /**
    * Machine-translated and not yet checked by somebody who speaks it.
    *
-   * Stays true until a native speaker has actually read the catalogue and said
-   * so. It is not a measure of how complete the file is -- a catalogue can be
+   * Stays true until a native speaker has actually read the catalog and said
+   * so. It is not a measure of how complete the file is -- a catalog can be
    * word-for-word finished and still read like a machine wrote it, which is
    * the thing this flag is about. Removing it is a deliberate act by a person,
    * not something a coverage number earns.
@@ -56,8 +56,8 @@ export const DEFAULT_UI_LANGUAGE = "en";
 /**
  * The language to actually render in.
  *
- * A stored preference is only honoured if its strings are still shipped: a
- * catalogue can be withdrawn, and an account carrying `de` from another
+ * A stored preference is only honored if its strings are still shipped: a
+ * catalog can be withdrawn, and an account carrying `de` from another
  * machine must not leave this one claiming to be German while showing English.
  */
 export function resolveUiLanguage(stored: string | undefined | null): string {