Added resource classses and a missing converter.

Harmonia.WinUI/ViewModels/ViewModelLocator.cs

@@ -0,0 +1,18 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Harmonia.WinUI.ViewModels;
+
+public class ViewModelLocator
+{
+    //public static MainViewModel MainViewModel
+    //    => App.ServiceProvider.GetRequiredService<MainViewModel>();
+
+    public static PlayerViewModel PlayerViewModel
+        => App.ServiceProvider.GetRequiredService<PlayerViewModel>();
+
+    //public static PlayingSongInfoViewModel PlayingSongInfoViewModel
+    //    => App.ServiceProvider.GetRequiredService<PlayingSongInfoViewModel>();
+
+    public static PlaylistViewModel PlaylistViewModel
+        => App.ServiceProvider.GetRequiredService<PlaylistViewModel>();
+}