Opening the plug forces to expand the window height of System Settings

### What Happened?

Opening Notifications Plug forces to expand the window height of System Settings.

https://github.com/user-attachments/assets/efc09646-1934-49ef-8811-0773659f0dc2

### Steps to Reproduce

1. Open System Settings
2. Visit Notifications Plug
3. See the window height of System Settings is expanded

### Expected Behavior

The window height of System Settings is not changed in the above step 3.

### OS Version

8.x (Circe)

### OS Architecture

amd64 (on most hardwares)

### Session Type

Secure Session (Wayland)

### Software Version

Latest release (I have run all updates)

### Log Output

```shell

```

### Hardware Info

_No response_