Allow to set language in the user management

[MorrisJobke]

• as an admin it would be nice to set the language of a user in the user management

[rullzer]

@skjnldsv since you are touching this recently

[skjnldsv]

Granted! :D

[skjnldsv]

Boop!

[MorrisJobke]

Nice :) ... I still doubt that putting everything in the list makes sense. The sidebar would be the better approach IMO. But for this specific item it should be okay for now.

[skjnldsv]

@MorrisJobke the language column is hidden by default! 😉