Place cursor in the end of the name on textbox focus (#12607)

src/modules/fancyzones/editor/FancyZonesEditor/MainWindow.xaml

@@ -390,7 +390,8 @@
                                  Margin="12,0,0,0"
                                  ui:ControlHelper.Header="{x:Static props:Resources.Name}"
                                  MinWidth="286"
-                                 HorizontalAlignment="Stretch" />
+                                 HorizontalAlignment="Stretch"
+                                 GotKeyboardFocus="TextBox_GotKeyboardFocus"/>
                     </StackPanel>
 
                     <!-- Shortcut panel -->

src/modules/fancyzones/editor/FancyZonesEditor/MainWindow.xaml.cs

@@ -446,5 +446,11 @@ namespace FancyZonesEditor
                 }
             }
         }
+
+        private void TextBox_GotKeyboardFocus(object sender, RoutedEventArgs e)
+        {
+            TextBox tb = sender as TextBox;
+            tb.SelectionStart = tb.Text.Length;
+        }
     }
 }