Improve code quality

Author: Jack251970

Flow.Launcher/MainWindow.xaml.cs

@@ -187,10 +187,8 @@ private void OnInitialized(object sender, EventArgs e)
 
         private void OnLoaded(object sender, RoutedEventArgs _)
         {
-            Dispatcher.BeginInvoke((Action)(() =>
-            {
-                ThemeManager.Instance.RefreshFrame();
-            }), DispatcherPriority.Background);
+            // Refresh frame
+            ThemeManager.Instance.RefreshFrame();
 
             // MouseEventHandler
             PreviewMouseMove += MainPreviewMouseMove;

Flow.Launcher/ViewModel/MainViewModel.cs

@@ -143,7 +143,6 @@ public MainViewModel()
             _userSelectedRecord = _userSelectedRecordStorage.Load();
             _topMostRecord = _topMostRecordStorage.Load();
 
-
             ContextMenu = new ResultsViewModel(Settings)
             {
                 LeftClickResultCommand = OpenResultCommand,
@@ -791,7 +790,6 @@ public string VerifyOrSetDefaultHotkey(string hotkey, string defaultHotkey)
         public string CycleHistoryUpHotkey => VerifyOrSetDefaultHotkey(Settings.CycleHistoryUpHotkey, "Alt+Up");
         public string CycleHistoryDownHotkey => VerifyOrSetDefaultHotkey(Settings.CycleHistoryDownHotkey, "Alt+Down");
 
-
         public string Image => Constant.QueryTextBoxIconImagePath;
 
         public bool StartWithEnglishMode => Settings.AlwaysStartEn;
@@ -1407,7 +1405,6 @@ public void Show()
             });
         }
 
-
         public async void Hide()
         {
             lastHistoryIndex = 1;
@@ -1483,8 +1480,6 @@ public async void Hide()
             VisibilityChanged?.Invoke(this, new VisibilityChangedEventArgs { IsVisible = false });
         }
 
-
-
         /// <summary>
         /// Checks if Flow Launcher should ignore any hotkeys
         /// </summary>