Not all empty workspaces get removed when closing an app which has windows on multiple workspaces

### What Happened?

When having multiple windows of an app (e.g. Files) on multiple workspace windows and closing the app with `Ctrl+Q` then not all workspaces which are empty get removed.

### Steps to Reproduce

1. Create multiple workspaces (e.g. 3) with some (other) app windows open on the first ones and a Files app window open on each of the workspaces.
2. Navigate to the first workspace and close the Files app via `Ctrl+Q`.
3. A left over workspace is shown with a Files icon, although there is no more window of that app open.
4. Navigate to this last workspace, open Files and close it again -> workspace will be removed (as it should have been before).

### Expected Behavior

Remove all empty workspaces.

### OS Version

8.x (Circe)

### OS Architecture

amd64 (on most hardwares)

### Session Type

Secure Session (Wayland, This is the default)

### Software Version

Latest release (I have run all updates)

### Log Output

```shell

```

### Hardware Info

_No response_