Show canonical alias on space home

### Steps to reproduce

1. Create a public space
2. it makes you set a public alias (at least element x does)
3. view space home, search alias
4.

### Outcome

#### What did you expect?
i can find my public alias easily.

#### What happened instead?
have to jump through hoops with opening the settings and copying it by hand

### Operating system

_No response_

### Application version

Element Nightly version: 2026031401 Crypto version: Rust SDK 0.16.0 (1ac734e), Vodozemac 0.9.0

### How did you install the app?

_No response_

### Homeserver

_No response_

### Will you send logs?

No