Fix some hardcoded locales, add UI in group to manage users

* Fix some hardcoded french locales
* Remove few unused files, many others still in code, but they are identified and marked as todo in evolutions.
* Fix an issue with **quickActions** in documentList, now when you explicitly add an empty tag *<quick-actions></quick-actions>* the button isn't added to the primary column.
* Add UI to manage user in group (add and remove users from a group)
* Refactoring user and group public profile UI