EW pressing on a room while joining resets EC

[toger5]

Reproduction path:

• start a huddle (with lobby) (normal room / not video room)
• press join in the lobby
• before the call is fully connected press on another room in the timeline
  -> EC will reload and be back in the lobby

this might be related to the always on screen situation.
We probably will move it to always on screen once we see the state event but we should do this once we press the join button.

The goal should be to be able to go through the connection cycle in the PIP.