Change Details

Inspired by termbox ([`inlanguage.ts`](https://gerrit.wikimedia.org/r/plugins/gitiles/wikibase/termbox/+/master/src/client/directives/inlanguage.ts)), but gets the direction from `$.uls.data.getDir()`, not from the store. NOTE: This implies a hard dependency of Data Bridge on ULS. In Wikimedia production, all Wikibase Client wikis also use ULS, but we should document this dependency somewhere.

Inspired by termbox ([`inlanguage.ts`](https://gerrit.wikimedia.org/r/plugins/gitiles/wikibase/termbox/+/master/src/client/directives/inlanguage.ts)), but gets the direction from `$.uls.data.getDir()`, not from the store. Additionally, language codes need to be mapped to their bcp47-compatible equivalents - this knowledge was only recently (re)gained in {T231476}/T231475 NOTE: This implies a hard dependency of Data Bridge on ULS. In Wikimedia production, all Wikibase Client wikis also use ULS, but we should document this dependency somewhere.

Inspired by termbox ([`inlanguage.ts`](https://gerrit.wikimedia.org/r/plugins/gitiles/wikibase/termbox/+/master/src/client/directives/inlanguage.ts)), but gets the direction from `$.uls.data.getDir()`, not from the store. Additionally, language codes need to be mapped to their bcp47-compatible equivalents - this knowledge was only recently (re)gained in {T231476}/T231475 NOTE: This implies a hard dependency of Data Bridge on ULS. In Wikimedia production, all Wikibase Client wikis also use ULS, but we should document this dependency somewhere.