R1:38694578e1d0

Improve project member list behaviors related to disabled users

Summary:
Fixes T13431.

Increase the "panel" version of project member lists to 10 users, hide disabled users, swap the buttons to "tail buttons".

Sort disabled users to the bottom of "full list" versions of member lists.

For UI consistency, render the remove "X" as disabled but visible if users don't have permission to remove members.

Test Plan:
- Viewed a project with disabled members.
- Saw only enabled members on the main project…