Vertical space is wasted on landscape orientation and the Recent chats function

### Your use case

#### What would you like to do?

I would like to open the app in vertical mode and use the Recent chats view; at the same time I would have as much room for the rooms in the bottom.

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

I like to se a bit more active content in the display than content I cannot interact with.

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

I would remove the "All Chats" title from the top, above the Recent chats rooms. The title actually doesn't make a lot of sense to me here.

I would also make the icons smaller. However, maybe their size should be customizable, such is the size of text.

Bonus: maybe the recent chats could somehow be between or under (in Z) the top-left-corner avatar and the search button, but maybe that's too cramped then.

### Have you considered any alternatives?

I can change the DPI of the Android device, however this scales everything and isn't a very satisfactory solution.

### Additional context

_No response_

### Are you willing to provide a PR?

No