[Android] Fix WebView.CanGoBack() returning true on first navigated page due to synthetic about:blank history entry - #35841

src/Controls/src/Core/PublicAPI/net-maccatalyst/PublicAPI.Unshipped.txt(16,1): 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(16,1): 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-android/PublicAPI.Unshipped.txt(24,1): Error RS0025: The symbol 'override Microsoft.Maui.Controls.TitleBar.OnBindingContextChanged() -> 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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