First commit. [ci skip]
Rename serializer
Make mixin for select2 assignees.
Add admin page.
Remove possible admins and editors from tasks.
Switch over reviewers to select2.
Subclass Select2Component. [ci skip]
Merge branch 'master' into select2ify
Separate out initialization callback.
Paper editor spec works.

For some reason solr doesn't seem to be indexing against first or
last name in test, only username and email.
Fix integration spec for reviewers
Show all admins/editors without searching.

Clean solr before each test.
User.all isn't needed.
Admin spec works.
Merge branch 'master' into select2ify

Conflicts:
	engines/standard_tasks/spec/features/paper_editor_task_spec.rb
Remove uneeded fat arrows [ci skip]
[#81994102] Update styling & interaction on role editing interface
[#81994102] Fix role class prefix
[#81994102] Fix Journal Page specs
[#82150732] add contributing.md [ci skip]

Includes a code of conduct