First export from translatewiki.net with https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1100353
[v] Verify autonym correctness in language-data
[v] Add to Wikifunctions's language list in function-schemata
[v] Add to `includes/languages/data/Names.php` ([[ https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1100525 | patch ]])
[v] Add to RELEASE-NOTES ([[ https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1100525 | patch ]])
[v] Add namespace translations ([[ https://translatewiki.net/wiki/User_talk:Bloomaround#Namespaces | asked ]], [[ https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1104025 | patch ]])
-- [v] Add gender aliases if needed
-- [v] Check that namespace translations don't conflict with language codes
[v] Add $linkTrail ([[ https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1100525 | patch ]])
[v] Remove from translatewiki after deploying the core change ([[ https://gerrit.wikimedia.org/r/c/translatewiki/+/1100526 | patch ]])
-- [v] `mw-config/LanguageSettings.php`
-- [v] `mw-config/FallbackSettings.php`
[ ] Test language search in UniversalLanguageSelector and fix the search index (if needed)