Reorganization of files

App/App.xaml.cs

@@ -0,0 +1,22 @@
+using System.Windows;
+using Prism.Ioc;
+
+namespace ModernWpfPlayground
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App
+    {
+        protected override void RegisterTypes(IContainerRegistry containerRegistry)
+        {
+            containerRegistry.Register<MainWindow>();
+            containerRegistry.Register<MainWindowViewModel>();
+        }
+
+        protected override Window CreateShell()
+        {
+            return Container.Resolve<MainWindow>();
+        }
+    }
+}