[BUG] Items inside the CollectionView that inside the Expander don't stretch on Android

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Did you read the "Reporting a bug" section on Contributing file?

- [X] I have read the "Reporting a bug" section on Contributing file: https://github.com/CommunityToolkit/Maui/blob/main/CONTRIBUTING.md#reporting-a-bug

### Current Behavior

Items inside the CollectionView that inside the Expander don't stretch on Android

### Expected Behavior

Items stretch to full width of the Expander.

### Steps To Reproduce

1. Open and run solution from repository

### Link to public reproduction project repository

https://github.com/Nevmen/ExpanderWithCollectionView

### Environment

```markdown
- .NET MAUI CommunityToolkit: 7.0.1
- OS: Android
- .NET MAUI: 8.0.3
```

### Anything else?

After moving or resizing emulator window items stretch as expected.