Migrate to Uno.Sdk and Uno Platform 7.0 - #319

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Microsoft.UI.Composition.Visual.RelativeSizeAdjustment is not implemented in Uno (https://aka.platform.uno/notimplemented?m=Microsoft.UI.Composition.Visual.RelativeSizeAdjustment) (https://aka.platform.uno/notimplemented)

Microsoft.UI.Composition.Compositor.CreateDropShadow() is not implemented in Uno (https://aka.platform.uno/notimplemented?m=Microsoft.UI.Composition.Compositor.CreateDropShadow()) (https://aka.platform.uno/notimplemented)

Windows.ApplicationModel.Resources.ResourceLoader.GetForUIContext(Windows.UI.UIContext) is not implemented in Uno (https://aka.platform.uno/notimplemented?m=Windows.ApplicationModel.Resources.ResourceLoader.GetForUIContext(Windows.UI.UIContext)) (https://aka.platform.uno/notimplemented)

Missing XML comment for publicly visible type or member 'CiTestExp_xBind.Element_PointerEntered(object, PointerRoutedEventArgs)'

Missing XML comment for publicly visible type or member 'CiTestExp_xBind.OnMyPropertyChanged(string, string)'

Missing XML comment for publicly visible type or member 'CiTestExp_ClassicBinding.Element_PointerEntered(object, PointerRoutedEventArgs)'

Missing XML comment for publicly visible type or member 'CiTestExp_ClassicBinding.OnMyPropertyChanged(string, string)'

Missing XML comment for publicly visible type or member 'CiTestExpStyle_xBind.CiTestExpStyle_xBind()'

Missing XML comment for publicly visible type or member 'CiTestExp.ArrangeOverride(Size)'

Missing XML comment for publicly visible type or member 'CiTestExp.MeasureOverride(Size)'