[Feat]:Add abillity to sort/filter users based on org role

[lanedsmu]

The UI for member management lacks the ability to show just the admins in the org/workspace. This is something that is pretty important for long-term management of the system, especially with the new support subscription option.

We'd like to propose the ability to filter the "all members" group in the user groups settings, such that you can see only the members of a particular role, including admins. The ability to search for an individual user would also be important over time.

I'm pretty sure we could build an app that would do this, but having a built-in UI for this is probably the best path.