chore: remove repetitive words

Signed-off-by: crazeteam <lilujing@outlook.com>

src/Avalonia.Base/Threading/DispatcherOperation.cs

@@ -117,7 +117,7 @@ public bool Abort()
     /// </summary>
     /// <returns>
     ///     The status of the operation.  To obtain the return value
-    ///     of the invoked delegate, use the the Result property.
+    ///     of the invoked delegate, use the Result property.
     /// </returns>
     public void Wait() => Wait(TimeSpan.FromMilliseconds(-1));
 

src/Avalonia.Controls.DataGrid/DataGridColumn.cs

@@ -614,7 +614,7 @@ public virtual IBinding ClipboardContentBinding
         }
 
         /// <summary>
-        /// Gets the value of a cell according to the the specified binding.
+        /// Gets the value of a cell according to the specified binding.
         /// </summary>
         /// <param name="item">The item associated with a cell.</param>
         /// <param name="binding">The binding to get the value of.</param>

src/Avalonia.Controls.DataGrid/IndexToValueTable.cs

@@ -140,11 +140,11 @@ public bool ContainsAll(int startIndex, int endIndex)
         }
 
         /// <summary>
-        /// Returns true if the given index is contained in the table with the the given value
+        /// Returns true if the given index is contained in the table with the given value
         /// </summary>
         /// <param name="index">index to search for</param>
         /// <param name="value">value expected</param>
-        /// <returns>true if the given index is contained in the table with the the given value</returns>
+        /// <returns>true if the given index is contained in the table with the given value</returns>
         public bool ContainsIndexAndValue(int index, T value)
         {
             int lowerRangeIndex = this.FindRangeIndex(index);

src/Avalonia.Controls/Automation/Peers/AutomationPeer.cs

@@ -182,7 +182,7 @@ public abstract class AutomationPeer
         public event EventHandler<AutomationPropertyChangedEventArgs>? PropertyChanged;
 
         /// <summary>
-        /// Raises an event to notify the automation client the the children of the peer have changed.
+        /// Raises an event to notify the automation client the children of the peer have changed.
         /// </summary>
         protected void RaiseChildrenChangedEvent() => ChildrenChanged?.Invoke(this, EventArgs.Empty);
 

src/Avalonia.Controls/Platform/DefaultMenuInteractionHandler.cs

@@ -520,7 +520,7 @@ internal void KeyDown(IMenuItem? item, KeyEventArgs e)
                             }
                             else if (item?.Parent?.MoveSelection(direction.Value, true) == true)
                             {
-                                // If the the parent is an IMenu which successfully moved its selection,
+                                // If the parent is an IMenu which successfully moved its selection,
                                 // and the current menu is open then close the current menu and open the
                                 // new menu.
                                 if (item.IsSubMenuOpen &&

src/Avalonia.Controls/Primitives/Popup.cs

@@ -258,7 +258,7 @@ public PlacementMode Placement
         }
 
         /// <summary>
-        /// Gets or sets the the anchor rectangle within the parent that the popup will be placed
+        /// Gets or sets the anchor rectangle within the parent that the popup will be placed
         /// relative to when <see cref="Placement"/> is <see cref="PlacementMode.AnchorAndGravity"/>.
         /// </summary>
         /// <remarks>
@@ -289,7 +289,7 @@ public Control? PlacementTarget
         /// through to the parent window.
         /// </summary>
         /// <remarks>
-        /// When <see cref="IsLightDismissEnabled"/> is set to true, clicks outside the the popup
+        /// When <see cref="IsLightDismissEnabled"/> is set to true, clicks outside the popup
         /// cause the popup to close. When <see cref="OverlayDismissEventPassThrough"/> is set to
         /// false, these clicks will be handled by the popup and not be registered by the parent
         /// window. When set to true, the events will be passed through to the parent window.

src/Avalonia.Controls/VirtualizingPanel.cs

@@ -77,7 +77,7 @@ private set
         /// item is realized; otherwise, null.
         /// </returns>
         /// <remarks>
-        /// Note for implementors: if the item at the the specified index is an ItemIsOwnContainer
+        /// Note for implementors: if the item at the specified index is an ItemIsOwnContainer
         /// item that has previously been realized, then the item should be returned even if it
         /// currently falls outside the realized viewport.
         /// </remarks>

src/Markup/Avalonia.Markup.Xaml.Loader/CompilerExtensions/Transformers/AvaloniaXamlIlSelectorTransformer.cs

@@ -36,7 +36,7 @@ public IXamlAstNode Transform(AstTransformationContext context, IXamlAstNode nod
                 return node;
 
             if (pn.Values.Count != 1)
-                throw new XamlSelectorsTransformException("Selector property should should have exactly one value",
+                throw new XamlSelectorsTransformException("Selector property should have exactly one value",
                     node);
 
             if (pn.Values[0] is XamlIlSelectorNode)

src/Markup/Avalonia.Markup/Data/RelativeSource.cs

@@ -45,7 +45,7 @@ public enum TreeType
     }
 
     /// <summary>
-    /// Describes the the location of a binding source, relative to the binding target.
+    /// Describes the location of a binding source, relative to the binding target.
     /// </summary>
     public class RelativeSource
     {