No way to copy aliases/ids from the room directory without accidentally joining rooms

### Steps to reproduce

1. Search the room directory for something
2. Want to copy the alias/roomid that shows up
3. Try to select the text by clicking & dragging over it
4. Accidentally join the room

### Outcome

#### What did you expect?

Looks like we might be triggering joins by onMouseDown rather than onClick or something? Or perhaps just require the user to explicitly click the Join or Preview button if they actually want to join the room?

#### What happened instead?

Accidentally joining rooms.

### Operating system

_No response_

### Application version

Element Nightly version: 2024060501 Crypto version: Rust SDK 0.7.0 (068a0af), Vodozemac 0.6.0

### How did you install the app?

_No response_

### Homeserver

_No response_

### Will you send logs?

No