swiping right when inside a room should reveal the list of room members

There's currently a nice swipe left experience (it takes you back to the list of rooms).

But there is no swipe right experience. I think when you're in a room, and you swipe right, it should show the list of members of the room sorted by Role and their online/offline status.

Start by locating the existing swipe-left behavior that returns from a room to the room list, then inspect the room member list and its current sorting and online/offline presentation. The work is done when swiping right inside a room reveals its members, sorted by role and showing each member’s online or offline status.

Written by the indexing model from the issue text.