Added ContextMenu/Flyout animations. Added platform services. Use bitmap cache for all views.

Harmonia.UI/App.axaml.cs

@@ -4,6 +4,7 @@ using Avalonia.Data.Core.Plugins;
 using Avalonia.Markup.Xaml;
 using Harmonia.Core.Extensions;
 using Harmonia.UI.Caching;
+using Harmonia.UI.Platform;
 using Harmonia.UI.ViewModels;
 using Harmonia.UI.Views;
 using Microsoft.Extensions.DependencyInjection;
@@ -27,6 +28,8 @@ public partial class App : Application
         services.AddSingleton<PlaylistViewModel>();
 
         services.AddSingleton<IAudioBitmapCache, AudioBitmapCache>();
+        services.AddSingleton<IStorageProviderLocator, StorageProviderLocator>();
+        services.AddSingleton<IClipboardLocator, ClipboardLocator>();
 
         services.AddHarmonia();
 
@@ -65,4 +68,4 @@ public partial class App : Application
 
         base.OnFrameworkInitializationCompleted();
     }
-}
+}