cross-link group policies and users, so you can edit one from the other

[Pomax]

Describe the solution you'd like

It would be nice if you could edit a group from a user's "roles" tab on the user's edit page, and be able to see all users that are in a group from a group's edit page.

On the user page, linking the group names to their edit pages would probably more enough, for the groups it would probably make sense to add a "see all users in this group" on the group overview page rather than putting something on a group's edit page, with the page that points to being a list of user names that link to their user edit pages.

[gasman]

The second half of this exists already, as the "View users in this group" button in the top right of the group edit page - added in #5854.

[Pomax]

ah, yes so it does. Getting the first half would still be high value (at least, for us - we have quite a lot of groups and quite a few pages of users, so there's no way for admins to "know" the user/group relations, being able to jump back and forth would be super useful)