Notification panel is empty if you page-load with it open

### Steps to reproduce

1. Open the notification panel
1. Reload the page
1. Notice how the notification panel is blank (empty state, "You're all caught up")
- There is also a related problem where new mentions won't show up once you get the empty state -> https://github.com/vector-im/element-web/issues/24614
1. Switching rooms or closing the panel and reloading the page will fix the problem


### Outcome

#### What did you expect?

Notification panel shows content regardless of whether you had it opened or not on page-load

#### What happened instead?

Notification panel is blank (empty state, "You're all caught up")

### Operating system

Windows 10

### Browser information

Chrome Version 110.0.5481.178

### URL for webapp

app.element.io

### Application version

Element version: 1.11.23 Olm version: 3.2.12

### Homeserver

matrix.org

### Will you send logs?

No