languages specified in `translatedLocales`
- Updates user language preference beta badge text
- Adds link to translation contribution docs
- Refactors component name
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Co-authored-by: SuaYoo <SuaYoo@users.noreply.github.com>
Co-authored-by: Henry Wilkinson <henry@wilkinson.graphics>
Co-authored-by: emma <hi@emma.cafe>
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