Fix duplicated value change

Author: Jack251970

Flow.Launcher/SettingWindow.xaml.cs

@@ -263,6 +263,7 @@ private void NavigationView_SelectionChanged(NavigationView sender, NavigationVi
                 nameof(About) => typeof(SettingsPaneAbout),
                 _ => typeof(SettingsPaneGeneral)
             };
+            _viewModel.SetPageType(pageType);
             ContentFrame.Navigate(pageType);
         }
     }

Flow.Launcher/ViewModel/SettingWindowViewModel.cs

@@ -14,6 +14,11 @@ public SettingWindowViewModel(Settings settings)
         _settings = settings;
     }
 
+    public void SetPageType(Type pageType)
+    {
+        _pageType = pageType;
+    }
+
     private Type _pageType = typeof(SettingsPaneGeneral);
     public Type PageType
     {