Fix demo app home button issue (#2477)

* Fix demo app Home button issue

* Move the demo app title to center of the header

Author: AmRo045

MainDemo.Wpf/Domain/MainWindowViewModel.cs

@@ -39,7 +39,12 @@ public MainWindowViewModel(ISnackbarMessageQueue snackbarMessageQueue)
             _demoItemsView = CollectionViewSource.GetDefaultView(DemoItems);
             _demoItemsView.Filter = DemoItemsFilter;
 
-            HomeCommand = new AnotherCommandImplementation(_ => { SelectedIndex = 0; });
+            HomeCommand = new AnotherCommandImplementation(
+                _ =>
+                {
+                    SearchKeyword = string.Empty;
+                    SelectedIndex = 0;
+                });
 
             MovePrevCommand = new AnotherCommandImplementation(
                 _ =>

MainDemo.Wpf/MainWindow.xaml

@@ -203,6 +203,7 @@
                             HorizontalAlignment="Center"
                             VerticalAlignment="Center"
                             FontSize="22"
+                            Margin="-152,0,0,0"
                             AutomationProperties.Name="Material Design In XAML Toolkit"
                             Text="Material Design In XAML Toolkit"/>
                     </DockPanel>