Audio Track and Subtitles Names Translation

[LhuanDula]

Hi everyone,

I have a jellyfin server running on docker set up in French. Everything seems to be correctly translated (movie titles, description, etc..).
However, the audio tracks and subtitles are all in english.

Meaning when I want to select a subtitle the displayed choices are:
 English - SUBRIP - Externe
 French - SUBRP - Externe

Same for audio track, the language is written in English.

Is there a way to:
1. Display the subtitle/audio track language using the correct locale (i.e. French in my case)
2. Simplify the Audio/subtitles track displayed name. e.g.:

• "English" instead of "English - SUBRIP - Externe"
  
• and same for the audio track "English 5.1" Instead of "AC-3 5.1 - Fre - Dolby Digitial - etc..."
  

Thanks in advance,
Cheers,