feat(shell):Show document title in WebWindow

src/shell/dotnet/Shell.sln.DotSettings

@@ -9,4 +9,5 @@ regarding copyright ownership. Unless required by applicable law or agreed
 to in writing, software distributed under the License is distributed on an
 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 or implied. See the License for the specific language governing permissions
-and limitations under the License.</s:String></wpf:ResourceDictionary>
+and limitations under the License.</s:String>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EFeature_002EServices_002ECodeCleanup_002EFileHeader_002EFileHeaderSettingsMigrate/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

src/shell/dotnet/Shell/WebWindow.xaml.cs

@@ -162,11 +162,20 @@ private Task InitializeCoreWebView2(CoreWebView2 coreWebView)
     {
         coreWebView.NewWindowRequested += (sender, args) => OnNewWindowRequested(args);
         coreWebView.WindowCloseRequested += (sender, args) => OnWindowCloseRequested(args);
-        coreWebView.NavigationStarting += (sender, args) => OnNavigationStarting(args);
+        coreWebView.NavigationStarting += (sender, args) => OnNavigationStarting(args); 
+        coreWebView.DocumentTitleChanged += (sender, args) => OnDocumentTitleChanged(args);
 
         return Task.CompletedTask;
     }
 
+    private void OnDocumentTitleChanged(object args)
+    {
+        if (_options.Title == null)
+        {
+            Title = WebView.CoreWebView2.DocumentTitle;
+        }
+    }
+
     private void OnNavigationStarting(CoreWebView2NavigationStartingEventArgs args)
     {
         if (_scriptsInjected)

src/shell/dotnet/Shell/WebWindowOptions.cs

@@ -34,7 +34,7 @@ public sealed class WebWindowOptions
     public double? Width { get; set; }
 
     public const double DefaultHeight = 450;
-    public const string DefaultTitle = "Compose Web Container";
+    public const string DefaultTitle = "ComposeUI Web Container";
     public const string DefaultUrl = "about:blank";
     public const double DefaultWidth = 800;
     public const string ParameterName = nameof(WebWindowOptions);