feat(launcher): Campaign LA add Avalonia desktop shell

src/AcDream.Launcher/Program.cs

@@ -0,0 +1,14 @@
+using Avalonia;
+
+namespace AcDream.Launcher;
+
+internal static class Program
+{
+    [STAThread]
+    public static void Main(string[] args) =>
+        BuildAvaloniaApp().StartWithClassicDesktopLifetime(args);
+
+    public static AppBuilder BuildAvaloniaApp() =>
+        AppBuilder.Configure<App>()
+            .UsePlatformDetect();
+}