[Feature] Configurable TMDB language

[raptack]

By default, TMDB language is set to "en-US" (hardcoded).

Therefore,

• Searches are performed using "en-US" english title
• Media details are displayed in english (optional impact)

It would be great to be able to configure default language in the settings.json file. Thus scrappers will use "local" title (depending on the language) and not always the english/US one.

[AyushSehrawat]

Symlink folder and files can have language code or something (if that doesn't work then local language title if available on trakt). As for scrapers instead of looking for local title look for that specific language, since scrapers are usually english movie/name lang like Interstellar 20xx ITA (italian)

[dreulavelle]

I think this is a frontend thing, as backend doesnt use TMDB for indexing.