Chat effects played ~14 times in Crypto Internal room

### Steps to reproduce

1. Open `Crypto | Internal` (in my case, the threads list view was open, but not any particular thread)
2. Stay there for a few minutes
3. 🎉 falls from the sky
4. 🎉 falls from the sky
5. 🎉 falls from the sky
6. 🎉 falls from the sky
7. 🎉 falls from the sky
8. 🎉 falls from the sky
9. 🎉 falls from the sky
10. etc

### Outcome

#### What did you expect?

Chat effects to not happen: there was no message which should have triggered them. All messages with confetti were well in the past (February 9th).

#### What happened instead?

Lots of confetti. Sometimes it even interrupted itself.

A possible theory is the threads list view is re-rendering with each `/sync`, and that's causing an amount of confetti.

### Operating system

Windows 10

### Application version

Element Nightly version: 0.0.1-nightly.2023031001 Olm version: 3.2.12

### How did you install the app?

The Internet

### Homeserver

t2l.io

### Will you send logs?

No