fix: Adjust InfoBarPanel namespace to match WinUI

src/Uno.UI/Microsoft/UI/Xaml/Controls/InfoBar/InfoBarPanel.Properties.cs

@@ -1,40 +1,82 @@
-// MUX reference InfoBarPanel.properties.cpp, commit 533c6b1
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+// MUX reference InfoBarPanel.properties.cpp, commit 533c6b1
 
 using Windows.UI.Xaml;
 
-namespace Microsoft.UI.Xaml.Controls
+namespace Microsoft.UI.Xaml.Controls.Primitives
 {
 	public partial class InfoBarPanel
 	{
+		/// <summary>
+		/// Gets the HorizontalOrientationMargin from an object.
+		/// </summary>
+		/// <param name="obj">The object that has an HorizontalOrientationMargin.</param>
+		/// <returns>The HorizontalOrientationMargin thickness.</returns>
 		public static Thickness GetHorizontalOrientationMargin(DependencyObject obj) => (Thickness)obj.GetValue(HorizontalOrientationMarginProperty);
 
+		/// <summary>
+		/// Sets the HorizontalOrientationMargin to an object.
+		/// </summary>
+		/// <param name="obj">The object that the HorizontalOrientationMargin value will be set to.</param>
+		/// <param name="value">The thickness of the HorizontalOrientationMargin.</param>
 		public static void SetHorizontalOrientationMargin(DependencyObject obj, Thickness value) => obj.SetValue(HorizontalOrientationMarginProperty, value);
 
+		/// <summary>
+		/// Gets the identifier for the HorizontalOrientationMargin dependency property.
+		/// </summary>
 		public static DependencyProperty HorizontalOrientationMarginProperty { get; } =
 			DependencyProperty.RegisterAttached("HorizontalOrientationMargin", typeof(Thickness), typeof(InfoBarPanel), new FrameworkPropertyMetadata(default(Thickness)));
 
+		/// <summary>
+		/// Gets and sets the distance between the edges of the InfoBarPanel
+		/// and its children when the panel is oriented horizontally.
+		/// </summary>
 		public Thickness HorizontalOrientationPadding
 		{
 			get => (Thickness)GetValue(HorizontalOrientationPaddingProperty);
 			set => SetValue(HorizontalOrientationPaddingProperty, value);
 		}
 
+		/// <summary>
+		/// Gets the identifier for the HorizontalOrientationPadding dependency property.
+		/// </summary>
 		public static DependencyProperty HorizontalOrientationPaddingProperty { get; } =
 			DependencyProperty.Register(nameof(HorizontalOrientationPadding), typeof(Thickness), typeof(InfoBarPanel), new FrameworkPropertyMetadata(default(Thickness)));
 
+		/// <summary>
+		/// Gets the VerticalOrientationMargin from an object.
+		/// </summary>
+		/// <param name="obj">The object that has a VerticalOrientationMargin.</param>
+		/// <returns>The VerticalOrientationMargin thickness.</returns>
 		public static Thickness GetVerticalOrientationMargin(DependencyObject obj) => (Thickness)obj.GetValue(VerticalOrientationMarginProperty);
 
+		/// <summary>
+		/// Sets the VerticalOrientationMargin to an object.
+		/// </summary>
+		/// <param name="obj">The object that the VerticalOrientationMargin value will be set to.</param>
+		/// <param name="value">The thickness of the VerticalOrientationMargin.</param>
 		public static void SetVerticalOrientationMargin(DependencyObject obj, Thickness value) => obj.SetValue(VerticalOrientationMarginProperty, value);
 
+		/// <summary>
+		/// Gets the identifier for the VerticalOrientationMargin dependency property.
+		/// </summary>
 		public static DependencyProperty VerticalOrientationMarginProperty { get; } =
 			DependencyProperty.RegisterAttached("VerticalOrientationMargin", typeof(Thickness), typeof(InfoBarPanel), new FrameworkPropertyMetadata(default(Thickness)));
 
+		/// <summary>
+		/// Gets and sets the distance between the edges of the InfoBarPanel
+		/// and its children when the panel is oriented vertically.
+		/// </summary>
 		public Thickness VerticalOrientationPadding
 		{
 			get => (Thickness)GetValue(VerticalOrientationPaddingProperty);
 			set => SetValue(VerticalOrientationPaddingProperty, value);
 		}
 
+		/// <summary>
+		/// Gets the identifier for the VerticalOrientationPadding dependency property.
+		/// </summary>
 		public static DependencyProperty VerticalOrientationPaddingProperty { get; } =
 			DependencyProperty.Register(nameof(VerticalOrientationPadding), typeof(Thickness), typeof(InfoBarPanel), new FrameworkPropertyMetadata(default(Thickness)));
 	}

src/Uno.UI/Microsoft/UI/Xaml/Controls/InfoBar/InfoBarPanel.cs

@@ -1,16 +1,28 @@
-// MUX reference InfoBarPanel.cpp, commit d67e625
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+// MUX reference InfoBarPanel.cpp, commit d67e625
 
 using System;
 using Windows.Foundation;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 
-namespace Microsoft.UI.Xaml.Controls
+namespace Microsoft.UI.Xaml.Controls.Primitives
 {
+	/// <summary>
+	/// Represents a panel that arranges its items horizontally if there is available space, otherwise vertically.
+	/// </summary>
 	public partial class InfoBarPanel : Panel
 	{
 		private bool m_isVertical = false;
 
+		/// <summary>
+		/// Initializes a new instance of the InfoBarPanel class.
+		/// </summary>
+		public InfoBarPanel()
+		{
+		}
+
 		protected override Size MeasureOverride(Size availableSize)
 		{
 			var desiredSize = new Size();