Jitsi Call Rooms have no way to be fullscreened

### Your use case

#### What would you like to do?

I would love to be able to utilize more space in call rooms, especially when screen shares happen.

#### Why would you like to do it?

If you have the right bar chat, spaces and the rooms open the size of the actual content is very narrow. In effect, the screenshare is usually unreadable.

#### How would you like to achieve it?

Being able to fullscreen the jitsi would be a good start. Ideally it should also include the chat similar to how youtube fullscreen has it.

### Have you considered any alternatives?

Popping out the iframe works but is not suitable to endusers. This is a poweruser workaround.

### Additional context

_No response_