Translate available languages

Current workaround: https://git.fairkom.net/clients/wechange/bbb-livetranslation/-/issues/26#note_28143

this needs more discussion

Current state

A moderator can freely decide upon the name of a language that they want to provide a translation for:

Regular participants can then choose that language - in the translation that the moderator provided:

Desired state

Languages have a different translation in each language.

So depending on the language of my user interface I will need to see a different text for that translation.

E.g. when the moderator adds the languages: English, French, German - participants with an English user interface would like to see "English", "French" and "German" If there are German users, they would like to see "Englisch", "Französisch", "Deutsch"

It could be possible to use the languages that BigBlueButton already provides and use this information - instead of a free text as it is currently implemented: