New Room List: avatars show the incorrect avatar for a short duration when switching space

### Steps to reproduce

1. Open Element Web, with at least two spaces joined by your account.
2. Switch between spaces on the **new** room list

### Outcome

#### What did you expect?

- Avatars are always correct

#### What happened instead?

- Avatars are briefly incorrect

### Operating system

Arch Linux

### Application version

Element Nightly version: 2025051901 Crypto version: Rust SDK 0.11.0 (f2e32d4), Vodozemac 0.9.0

### How did you install the app?

AUR

### Homeserver

Synapse

### Will you send logs?

Yes