Crash on app install

### What Happened?

The AppCenter freezes and eventually closes when an app is installed.

### Steps to Reproduce

1. Open AppCenter
2. Open the page for any app
3. Click the install button
4. Wait on this page. (May be neccesary to focus another window, unsure yet)
5. As it gets to completion, the AppCenter freezes just before the install notification arrives (which it still does), and closes after 10-15 seconds.

### Expected Behavior

The app should continue being useable and not crash, just like every other app store

### OS Version

8.x (Circe)

### OS Architecture

amd64 (on most hardwares)

### Session Type

Classic Session (X11, This is the default)

### Software Version

Latest release (I have run all updates)

### Log Output

```shell
(will add later)
```

### Hardware Info

_No response_