web, locale: Normalize legacy locale file names (#24024)

* web/xliff: remove legacy Transifex-named locale files

The old Transifex config named locale files with underscores
(cs_CZ.xlf, pt_BR.xlf, ...) alongside the hyphenated BCP-47 form the
current lit-localize pipeline actually reads. That config was fixed
months ago, so the underscore files are either stale duplicates of a
current kebab-case sibling or orphaned contributions for locales the
project never enabled.

Deleted 11 legacy files that already have a kebab-case equivalent in
web/xliff/. Kebab wins even where the two diverged, so 2,220 legacy-only
<trans-unit> targets get dropped along the way (fr_FR carried the bulk
at 954; the rest of the languages contribute the remaining 1,266).

Renamed 3 legacy files with no kebab counterpart and added their locale
codes to web/lit-localize.json targetLocales:

- ar_AA.xlf -> ar.xlf (AA was a bogus private-use region; landed on
  the plain language code).
- bg_BG.xlf -> bg-BG.xlf.
- no_NO.xlf -> nb-NO.xlf (no is the Norwegian macrolanguage; the
  translation is Bokmal, so nb is the correct language subtag).

Each renamed file also has its internal target-language attribute
updated to match its new locale code, so lit-localize keeps
recognising the existing translations instead of treating everything
as absent.

Wired the new locales into LocaleLoaderRecord in
web/src/common/ui/locale/definitions.ts so the runtime can import the
emitted modules; lit-localize regenerates web/src/locale-codes.ts to
match. locale/ (Django gettext) stays exactly as it was.

Verified with: cd web && npm run build-locales && npm run precommit.

Co-Authored-By: Agent (authentik-m-remove-legacy-intended-nominal-mahogany) <279763771+playpen-agent@users.noreply.github.com>

* locale: sync Django language codes to lit-localize (ar_AA to ar, no_NO to nb_NO)

Mirror the two locale-code changes just landed on the web/xliff side
into the Django gettext tree, in Django's ll_CC underscore form:

- locale/ar_AA -> locale/ar (drop the bogus AA private-use region;
  matches web ar).
- locale/no_NO -> locale/nb_NO (Norwegian macrolanguage to Bokmal,
  which is the writing system the contributed translation uses;
  matches web nb-NO).

bg_BG is left alone (already equals the underscore form of the web
bg-BG), and every other Django locale directory - including zh-Hans
and zh-Hant - stays exactly as it was.

Both catalogs also had their in-file Language header updated to match
the new directory (Language: ar_AA -> ar, Language: no_NO -> nb_NO)
and the .mo binaries were recompiled via manage.py compilemessages so
runtime lookups get the correct language metadata.

No functional LANGUAGES / LANGUAGE_CODE settings referenced the old
codes: only historical Transifex team URLs in the .po Language-Team
headers and past release-notes lines mention them, and those are
metadata / audit trail rather than config.

Verified: to_locale('nb-no') -> 'nb_NO', to_locale('ar') -> 'ar', and
gettext.translation loads locale/ar/LC_MESSAGES/django.mo (1,122
entries, language=ar) and locale/nb_NO/LC_MESSAGES/django.mo (1,116
entries, language=nb_NO).

Co-Authored-By: Agent (authentik-m-remove-legacy-intended-nominal-mahogany) <279763771+playpen-agent@users.noreply.github.com>

---------

Co-authored-by: Agent (authentik-m-remove-legacy-intended-nominal-mahogany) <279763771+playpen-agent@users.noreply.github.com>

locale/ar/LC_MESSAGES/django.po

@@ -19,7 +19,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Language: ar_AA\n"
+"Language: ar\n"
 "Plural-Forms: nplurals=6; plural=n==0 ? 0 : n==1 ? 1 : n==2 ? 2 : n%100>=3 && n%100<=10 ? 3 : n%100>=11 && n%100<=99 ? 4 : 5;\n"
 
 #: authentik/admin/files/api.py

locale/nb_NO/LC_MESSAGES/django.po

@@ -19,7 +19,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Language: no_NO\n"
+"Language: nb_NO\n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
 #: authentik/admin/files/api.py

web/lit-localize.json

@@ -2,6 +2,8 @@
     "$schema": "https://raw.githubusercontent.com/lit/lit/main/packages/localize-tools/config.schema.json",
     "sourceLocale": "en",
     "targetLocales": [
+        "ar",
+        "bg-BG",
         "cs-CZ",
         "de-DE",
         "en",
@@ -12,6 +14,7 @@
         "it-IT",
         "ja-JP",
         "ko-KR",
+        "nb-NO",
         "nl-NL",
         "pl-PL",
         "pt-BR",

web/src/common/ui/locale/definitions.ts

@@ -33,6 +33,8 @@ const sourceTargetModule: LocaleModule = {
 export const LocaleLoaderRecord: Record<TargetLanguageTag, () => Promise<LocaleModule>> = {
     [SourceLanguageTag]: () => Promise.resolve(sourceTargetModule),
     [PseudoLanguageTag]: () => import("#locales/en-XA"),
+    "ar": () => import("#locales/ar"),
+    "bg-BG": () => import("#locales/bg-BG"),
     "cs-CZ": () => import("#locales/cs-CZ"),
     "de-DE": () => import("#locales/de-DE"),
     "es-ES": () => import("#locales/es-ES"),
@@ -41,6 +43,7 @@ export const LocaleLoaderRecord: Record<TargetLanguageTag, () => Promise<LocaleM
     "it-IT": () => import("#locales/it-IT"),
     "ja-JP": () => import("#locales/ja-JP"),
     "ko-KR": () => import("#locales/ko-KR"),
+    "nb-NO": () => import("#locales/nb-NO"),
     "nl-NL": () => import("#locales/nl-NL"),
     "pl-PL": () => import("#locales/pl-PL"),
     "pt-BR": () => import("#locales/pt-BR"),

web/src/locale-codes.ts

@@ -11,6 +11,8 @@ export const sourceLocale = `en`;
  * lexicographically.
  */
 export const targetLocales = [
+  `ar`,
+  `bg-BG`,
   `cs-CZ`,
   `de-DE`,
   `en-XA`,
@@ -20,6 +22,7 @@ export const targetLocales = [
   `it-IT`,
   `ja-JP`,
   `ko-KR`,
+  `nb-NO`,
   `nl-NL`,
   `pl-PL`,
   `pt-BR`,
@@ -33,6 +36,8 @@ export const targetLocales = [
  * All valid project locale codes. Sorted lexicographically.
  */
 export const allLocales = [
+  `ar`,
+  `bg-BG`,
   `cs-CZ`,
   `de-DE`,
   `en`,
@@ -43,6 +48,7 @@ export const allLocales = [
   `it-IT`,
   `ja-JP`,
   `ko-KR`,
+  `nb-NO`,
   `nl-NL`,
   `pl-PL`,
   `pt-BR`,

web/xliff/ar.xlf

@@ -1,5 +1,5 @@
 <?xml version="1.0" ?><xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" version="1.2">
-<file target-language="ar-AA" source-language="en" original="lit-localize-inputs" datatype="plaintext">
+<file target-language="ar" source-language="en" original="lit-localize-inputs" datatype="plaintext">
 <body>
 <!-- #region Locales -->
 <trans-unit id="en">

web/xliff/nb-NO.xlf

@@ -1,5 +1,5 @@
 <?xml version="1.0" ?><xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" version="1.2">
-<file target-language="no-NO" source-language="en" original="lit-localize-inputs" datatype="plaintext">
+<file target-language="nb-NO" source-language="en" original="lit-localize-inputs" datatype="plaintext">
 <body>
 <!-- #region Locales -->
 <trans-unit id="en">