Fix typo: `ExternalGLibMainLoopExceptionLogger` (#19128)

samples/XEmbedSample/Program.cs

@@ -20,7 +20,7 @@ class Program
             .With(new X11PlatformOptions()
             {
                 UseGLibMainLoop = true,
-                ExterinalGLibMainLoopExceptionLogger = e => Console.WriteLine(e.ToString())
+                ExternalGLibMainLoopExceptionLogger = e => Console.WriteLine(e.ToString())
             })
             .UseX11()
             .SetupWithoutStarting();

src/Avalonia.X11/Dispatching/GLibDispatcherImpl.cs

@@ -237,7 +237,7 @@ internal class GlibDispatcherImpl :
         }
         else
         {
-            var externalLogger = _platform.Options.ExterinalGLibMainLoopExceptionLogger;
+            var externalLogger = _platform.Options.ExternalGLibMainLoopExceptionLogger;
             if (externalLogger != null)
                 externalLogger.Invoke(e);
             else

src/Avalonia.X11/X11Platform.cs

@@ -384,8 +384,8 @@ namespace Avalonia
         /// will likely brick GLib machinery since it's not aware of managed Exceptions
         /// This property allows to inspect such exceptions before they will be ignored
         /// </summary>
-        public Action<Exception>? ExterinalGLibMainLoopExceptionLogger { get; set; }
-        
+        public Action<Exception>? ExternalGLibMainLoopExceptionLogger { get; set; }
+
         public X11PlatformOptions()
         {
             try