Current Behavior

Popup content has an extra background that can't be removed.

Expected Behavior

No mysterious background at all, using the views or first content to create backgrounds.

Steps To Reproduce

1. Create new popup with grid as content
2. Set backgroundcolor on grid and margin

Link to public reproduction project repository

https://github.com/Toine-db/random-shares/tree/MAUI-popup-background-issue

Environment

- .NET MAUI CommunityToolkit: 7.0.0
- OS: iOS
- .NET MAUI: iOS 17.0.8478/8.0.100      VS 17.8.34309.116, VS 17.8.34302.71

Anything else?

Used the same setup as previous Popup background issue: https://github.com/CommunityToolkit/Maui/issues/899