[L10n] Integrate translation platform

[Korb]

• Weblate (used by F-Droid too, open-source, self-hostable, our recommendation),
• Crowdin or
• Transifex (both proprietary but free for FLOSS projects).

https://f-droid.org/2024/08/15/twif.html#community-news

[adbenitez]

hi @Korb, if I go for something it would be Weblate, I don't know how to do it tho, would need to investigate, so if you can help with that somehow that would be a way to move forward, otherwise if you want me to do it, you could join my supporters and vote for this on my "what should I work on next?" polls: https://ko-fi.com/adbenitez

one thing to consider is that we need a separate file for arcanechat-specific strings, and not just modify the existing strings.xml files because that will cause a lot of merge conflicts when merging upstream