V2 translate

[Zasa-san]

fixes #6691

• Update translation sockets actions to update atom store and not redux
• Tests (test that atoms update via sockets, test that when you submit translations the socket even is fired?, we are not updating the translationsAtom after submitting, so consistency across the UI depends on sockets)
• Refactor (for example t has circular deps)
• API changes need to be reviewed
• Modal styles
• Cleanup
• After merging, create issue to migrate form so that we can remove the old translations endpoitns
• Modal stacking. Translate modal can be triggered by other modals. It should always sit on top of all other app elements.
• Changes to the dropdown menu for language selection might impact pages?

[Zasa-san]

We should also check this -> #5068