清理引用，将NavigatorServices更改为使用Message来实现导航的切换

ViewModels/SettingViewModel.cs

@@ -1,9 +1,8 @@
 namespace PMSWPF.ViewModels;
 
-public class SettingViewModel:ViewModelBase
+public class SettingViewModel : ViewModelBase
 {
     public override void OnLoaded()
     {
-        
     }
 }