Requested at https://translatewiki.net/w/i.php?title=Support&oldid=12481861#Request_for_Luvale_and_Chitonga_language_to_be_added
Autonyms according to Ethnologue: Chitonga (toi) and Chiluvale (lue).
[v] Add to language-data ([[ https://github.com/wikimedia/language-data/pull/350 | patch ]])
-- [v] Run `src/util/ulsdata2json.php` before adding
-- [v] Run `src/util/ulsdata2json.php` after adding
[v] Add to translatewiki configuration ([[ https://gerrit.wikimedia.org/r/c/translatewiki/+/1050795 | patch ]])
-- [v] Add assistant languages to `mw-config/FallbackSettings.php`
[v] Deploy configuration to translatewiki
[ ] Update jquery.uls and jquery.ime in the ULS extension ([[ https://gerrit.wikimedia.org/r/c/mediawiki/extensions/UniversalLanguageSelector/+/1051829 | patch ]])
[ ] Deploy ULS to translatewiki
[v] Create the translatewiki language portal
[v] Update the translatewiki language portal to indicate that the language is enabled
[v] Enter the autonym in the Wikimedia Portals project