Problem:
When using an interface language that is a variant of another language like de-at then the language fallback indicators should not be shown. We are already hiding them in other places in the exact same situation.
Example:
https://www.wikidata.org/wiki/Special:NewLexeme?uselang=de-at
Screenshots/mockups:
Acceptance criteria:
- language fallback indicators are hidden for language variants if the fallback is to the main language
