Unable to remember the room list width under certain conditions.

### Steps to reproduce

0. Enable a new room list;
1. Adjust the width to make the list narrower;
2. Reload the app;
3. Adjust the width to maximum all at once;
4. Reload the app again.

### Outcome

#### What did you expect?
n/a

#### What happened instead?
The list width reverts to the width in step 1 after the webpage is refreshed.
Based on my observation, this phenomenon often occurs when "setting the list width to maximum".
Temporary workaround: Edit the value of `RoomList.panelSize` in "Settings explorer".
**This problem also occurs in the web client.**

### Operating system

x64 Windows 11 (10.0.26200)

### Application version

Element Desktop 1.12.18

### How did you install the app?

https://packages.element.io/desktop/update/win32/x64/index.html

### Homeserver

Synapse 1.153.0

### Will you send logs?

No