Add Internationalization Support

[LeoColman]

Problem

App is currently English only

Proposed Solution

Create an account in Weblate (free licenses for open source software) and add the possibility to translate strings

[seras42]

In the next update cycle perhaps. I made a mistake that i did not start with this at first, when i was creating the app, would have made things way easier. I really hate making accounts, but i know that flutter has something like this for the localization https://pub.dev/packages/flutter_localization