To make it harder to accidentally mess up the tour when making changes to pages, this commit adds ids with 'tour' prefixes to (nearly) all elements used by the guided tour as anchor points. The exception is where an element already had an id that is being used by something else in Bookwyrm.
Some minor changes also made to clean up the wording of the tour.
- move 'Add list' button down to the group lists
- move member search box underneath members heading
- note about members being able to create lists is now under lists heading
- require confirmation before removing a member
- require confirmation before removing self
- make button text less verbose
- use more standardised formatting for group editing form
- improve button colours
- add missing trans tags
- reload group page when removing member
Let's do this the sensible way huh, by using backwards references to memberships etc
Also adds filters for is_member and is_invited so we don't have to do weird things in group Views
- search for users to add to a group
- display suggested users on search results screen
TODO: actaully enable users to be added!
TODO: groups/suggested_users probably could be replaced with some logic in snippets/suggested_users.html
