[leak-fix] Fix TransformGroup.Children memory leak (Fixes #36367) - #36531

src/Core/src/PublicAPI/net-android/PublicAPI.Shipped.txt(2517,1): Error RS0017: Symbol 'override Microsoft.Maui.MauiAppCompatActivity.OnBackPressed() -> void' is part of the declared API, but is either not public or could not be found (https://github.com/dotnet/roslyn/blob/main/src/RoslynAnalyzers/PublicApiAnalyzers/PublicApiAnalyzers.Help.md)

src/Controls/src/Core/PublicAPI/net-maccatalyst/PublicAPI.Unshipped.txt(15,1): Error RS0025: The symbol 'override Microsoft.Maui.Controls.Handlers.Items2.StructuredItemsViewController2<TItemsView>.UpdateFlowDirection() -> void' appears more than once in the public API files (https://github.com/dotnet/roslyn/blob/main/src/RoslynAnalyzers/PublicApiAnalyzers/PublicApiAnalyzers.Help.md)

src/Controls/src/Core/PublicAPI/net-ios/PublicAPI.Unshipped.txt(15,1): Error RS0025: The symbol 'override Microsoft.Maui.Controls.Handlers.Items2.StructuredItemsViewController2<TItemsView>.UpdateFlowDirection() -> void' appears more than once in the public API files (https://github.com/dotnet/roslyn/blob/main/src/RoslynAnalyzers/PublicApiAnalyzers/PublicApiAnalyzers.Help.md)

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