[#78845544] sort users based on relationship to paper
[#78845544] Min width on select box so it stops shrinking
[#78845544] Sort by role, then name.

- shows collabs only to non-site-admins
- remove root: false and filter on front end
[ci skip] remove extra space
[#79323780] debounce select2 search to prevent cancelled requests
Merge branch 'select2-sort' of github.com:Tahi-project/tahi into select2-sort
[#78845544] filter roles on serializer, not controller

- includes spec to detail behavior
Merge pull request #541 from Tahi-project/select2-sort

[#78845544] sort users based on relationship to paper