[BUG] MediaElement background doesn't change on iOS

### 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

I'm setting the BackgroundColor property in the MediaElement but it looks like the color doesn't change on iOS (looks OK on Android).

```xaml

```

### Expected Behavior

When setting the BackgroundColor property in the MediaElement, the color should be updated on iOS.

### Steps To Reproduce

1. Clone the project https://github.com/juniorsaraviao/VideoSample/tree/master.
2. Run the project on Android and iOS.

### Link to public reproduction project repository

https://github.com/juniorsaraviao/VideoSample/tree/master

### Environment

```markdown
- .NET MAUI CommunityToolkit: 3.0.1
- OS: macOS Sonoma 14.1.1
- .NET MAUI: 8.0.3
```

### Anything else?

_No response_

Start with the VideoSample reproduction project and run its MediaElement example on Android and iOS using the versions listed in the issue. Compare the BackgroundColor behavior on both platforms; done means the configured color is visibly applied on iOS as it is on Android.

Written by the indexing model from the issue text.