Having both the member list and permission controls is troublesome, and
scales the larger your moderation team is. We eventually may want to
manage banned/muted users too so I think it warrants having a new page.
I also moved the search field to the top so it's more accessible.
As for permissions, I tried to improve the UX generally while not
changing it too heavily. First the easy change is to the text, hopefully
the sections should be clearer (especially for "state" events.) The
bigger change here is the new sections, I tried to make it more useful
and organized. Additionally, I added more permissions like sharing live
locations and polls so they're more easily configurable.
One other change is that permissions are visible regardless of whether
you can set them or not, matching Element's behavior.
