Top-level language switch for django-modeltranslations

[GaspardMerten]

Hello!

Thanks for this amazing library. I customized your lib to have one tab to change the language for all fields instead of many. Would it be interesting to merge it into the lib?

For now, I did it by inserting custom javascript, but there are cleaner ways.

[lukasvinclav]

If you created a solution which is Alpine.js based without any additional JS, please submit a PR and I will take a look.