Allow opening/expanding avatars of rooms and users

### Your use case

#### What would you like to do?

I'd like to be able to open/expand/zoom in on room and user avatars.

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

They're all so small most of the time that its hard to see what they are, but there seems to be no way of opening them. Now that we have authenticated media you can't just right click > open in new tab.

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

Especially in receive invite screen you should be able to click on the user avatar to see a bigger version. Currently clicking on it does nothing

### Have you considered any alternatives?

_No response_

### Additional context

_No response_