[iOS] App crash when an element is removed from its parent layout

[Santiago5050]

Exception "MauiContext should have been set on parent" when removing a child from its parent layout on iOS

Description:
When a child is removed from its parent layout on iOS, an exception "MauiContext should have been set on parent" is thrown. Upon investigation, it seems that the issue arises during the cleanup process by Maui when attempting to clean a child that has already been cleaned by Mopups.

Proposed Solution:
To address this issue, I suggest stopping listening the 'DescendantRemoved' event and the child handler cleanup in the iOS implementation of IPopupPlatform. By doing so, Maui will be able to properly handle the cleanup of the removed view.

Environment:

• Platform: iOS
• .NET Version: 8.0.0
• Mopups Version: 1.0.2
• Maui Version: 8.0.3

Repro
ReproMopups.zip

Steps to reproduce

1. Run the solution in an iOS device.
2. Tap the 'Open popup' button.
3. Tap the 'Add/Remove label' button.
   A label will be added with the first tap, but after the second the app will crash trying to remove the label from its parent layout.

[Tamilarasan-Paranthaman]

Are there any updates regarding this issue?

[microspaze]

The same issue in RGPopup.Maui:
microspaze/RGPopup.Maui#6

The fix commits:
microspaze/RGPopup.Maui@a64a99d
microspaze/RGPopup.Maui@62ac001