Fix minor typos in comments.

Author: realybin

src/CommunityToolkit.HighPerformance/Buffers/StringPool.cs

@@ -85,7 +85,7 @@ static void FindFactors(int size, int factor, out uint x, out uint y)
         // that we consider acceptable, and pick the best results produced.
         // The ratio between maps influences the number of objects being allocated,
         // as well as the multithreading performance when locking on maps.
-        // We still want to contraint this number to avoid situations where we
+        // We still want to constraint this number to avoid situations where we
         // have a way too high number of maps compared to total size.
         FindFactors(minimumSize, 2, out uint x2, out uint y2);
         FindFactors(minimumSize, 3, out uint x3, out uint y3);
@@ -113,7 +113,7 @@ static void FindFactors(int size, int factor, out uint x, out uint y)
 
         // We preallocate the maps in advance, since each bucket only contains the
         // array field, which is not preinitialized, so the allocations are minimal.
-        // This lets us lock on each individual maps when retrieving a string instance.
+        // This lets us lock on each individual map when retrieving a string instance.
         foreach (ref FixedSizePriorityMap map in span)
         {
             map = new FixedSizePriorityMap((int)y2);

src/CommunityToolkit.Mvvm.SourceGenerators/ComponentModel/ObservableValidatorValidateAllPropertiesGenerator.Execute.cs

@@ -181,7 +181,7 @@ public static CompilationUnitSyntax GetSyntax(ValidationInfo validationInfo)
             // full runtime type safety (as a safe cast is used to validate the input argument), and with less reflection needed.
             // Note that we're deliberately creating a new delegate instance here and not using code that could see the C# compiler
             // create a static class to cache a reusable delegate, because each generated method will only be called at most once,
-            // as the returned delegate will be cached by the MVVM Toolkit itself. So this ensures the the produced code is minimal,
+            // as the returned delegate will be cached by the MVVM Toolkit itself. So this ensures the produced code is minimal,
             // and that there will be no unnecessary static fields and objects being created and possibly never collected.
             // This code will produce a syntax tree as follows:
             //

src/CommunityToolkit.Mvvm/ComponentModel/Attributes/INotifyPropertyChangedAttribute.cs

@@ -28,7 +28,7 @@ public sealed class INotifyPropertyChangedAttribute : Attribute
 {
     /// <summary>
     /// Gets or sets a value indicating whether or not to also generate all the additional helper methods that are found
-    /// in <see cref="ObservableObject"/> as well (eg. <see cref="ObservableObject.SetProperty{T}(ref T, T, string?)"/>.
+    /// in <see cref="ObservableObject"/> as well (eg. <see cref="ObservableObject.SetProperty{T}(ref T, T, string?)"/>).
     /// If set to <see langword="false"/>, only the <see cref="INotifyPropertyChanged.PropertyChanged"/> event and
     /// the two <see cref="ObservableObject.OnPropertyChanged(PropertyChangedEventArgs)"/> overloads will be generated.
     /// The default value is <see langword="true"/>.

src/CommunityToolkit.Mvvm/Messaging/IMessenger.cs

@@ -15,7 +15,7 @@ namespace CommunityToolkit.Mvvm.Messaging;
 /// <code>
 /// public sealed class LoginCompletedMessage { }
 /// </code>
-/// Then, register your a recipient for this message:
+/// Then, register a recipient for this message:
 /// <code>
 /// Messenger.Default.Register&lt;MyRecipientType, LoginCompletedMessage&gt;(this, (r, m) =>
 /// {

src/CommunityToolkit.Mvvm/Messaging/IMessengerExtensions.cs

@@ -435,7 +435,7 @@ public static TMessage Send<TMessage>(this IMessenger messenger, TMessage messag
     /// <typeparam name="TToken">The type of token to identify what channel to use to send the message.</typeparam>
     /// <param name="messenger">The <see cref="IMessenger"/> instance to use to send the message.</param>
     /// <param name="token">The token indicating what channel to use.</param>
-    /// <returns>The message that has been sen.</returns>
+    /// <returns>The message that has been sent.</returns>
     /// <remarks>
     /// This method will automatically create a new <typeparamref name="TMessage"/> instance
     /// just like <see cref="Send{TMessage}(IMessenger)"/>, and then send it to the right recipients.

src/CommunityToolkit.Mvvm/Messaging/Internals/System/Collections.Generic/Dictionary2.cs

@@ -298,7 +298,7 @@ public bool MoveNext()
             while ((uint)this.index < (uint)this.count)
             {
                 // We need to preemptively increment the current index so that we still correctly keep track
-                // of the current position in the dictionary even if the users doesn't access any of the
+                // of the current position in the dictionary even if the users don't access any of the
                 // available properties in the enumerator. As this is a possibility, we can't rely on one of
                 // them to increment the index before MoveNext is invoked again. We ditch the standard enumerator
                 // API surface here to expose the Key/Value properties directly and minimize the memory copies.