Implement the "keep language settings active over module updates" in the branch 2.0.x

I created another MR for this and all the pipeline tests have passed (except for the tests, which need to be fixed): https://git.drupalcode.org/project/fluidui/-/merge_requests/25

Tested on D10.4.7:

I did other tests and still seems to work fine for me, I believe this needs to be refactored a bit, but for now it suits our need for the multilingual widget.

Perhaps I need to look into the infusion documents closely.

Automatically closed - issue fixed for 2 weeks with no activity.