Save and close for setting tab

Wox/SettingWindow.xaml.cs

@@ -309,15 +309,6 @@ namespace Wox
 
         #endregion
 
-        private void Window_PreviewKeyDown(object sender, KeyEventArgs e)
-        {
-            // Hide window with ESC, but make sure it is not pressed as a hotkey
-            if (e.Key == Key.Escape && !HotkeyControl.IsFocused)
-            {
-                Close();
-            }
-        }
-
         private async void OnCheckUpdates(object sender, RoutedEventArgs e)
         {
             var version = await Updater.NewVersion();
@@ -338,5 +329,15 @@ namespace Wox
             Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri));
             e.Handled = true;
         }
+
+        private void OnClosed(object sender, EventArgs e)
+        {
+            _viewModel.Save();
+        }
+
+        private void OnCloseExecuted(object sender, ExecutedRoutedEventArgs e)
+        {
+            Close();
+        }
     }
 }