fix editing annotation

Azaion.Annotator/App.xaml.cs

@@ -48,7 +48,7 @@ public partial class App : Application
                 });
                 services.AddSingleton<IConfigRepository, FileConfigRepository>();
                 services.AddSingleton<Config>(sp => sp.GetRequiredService<IConfigRepository>().Get());
-                services.AddSingleton<PlayerControlHandler>();
+                services.AddSingleton<MainWindowEventHandler>();
             })
             .UseSerilog()
             .Build();