Sidenav for room navigation
To make better use of vertical space on desktop devices, generally gain more space and simplify the navigation hierarchy one possibility would be to implement a sidenav. Moving room name and shortId to the sidenav could also improve the orientation within a room. Also information like the live participant counter could be displayed permanently e.g. at the bottom.
The sidenav then could contain all "top level routes" of a room (Overview, Settings, Q&A, Feedback & Question Series). If the room has multiple questions series it would be a good option to display them as list in the sidenav.
For introducing the sidenav we could consider to start with a collapsable bar to let the users decide what they want and get some data of what they prefer.
Related to #812 (closed).
This is what it could looks like: