Rename Avalonia projects

Add Avalonia platform projects

src/Avalonia/Artemis.UI.MacOS/App.axaml.cs

@@ -0,0 +1,50 @@
+using Artemis.Core.Ninject;
+using Artemis.UI.Ninject;
+using Artemis.UI.Screens.Root.ViewModels;
+using Artemis.UI.Shared.Ninject;
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+using Avalonia.Threading;
+using Ninject;
+using ReactiveUI;
+using Splat.Ninject;
+
+namespace Artemis.UI.MacOS
+{
+    public class App : Application
+    {
+        private StandardKernel _kernel = null!;
+
+        public override void Initialize()
+        {
+            InitializeNinject();
+            RxApp.MainThreadScheduler = AvaloniaScheduler.Instance;
+
+            AvaloniaXamlLoader.Load(this);
+        }
+
+        public override void OnFrameworkInitializationCompleted()
+        {
+            if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+                desktop.MainWindow = new MainWindow
+                {
+                    DataContext = _kernel.Get<RootViewModel>()
+                };
+
+            base.OnFrameworkInitializationCompleted();
+        }
+
+        private void InitializeNinject()
+        {
+            _kernel = new StandardKernel();
+            _kernel.Settings.InjectNonPublic = true;
+
+            _kernel.Load<CoreModule>();
+            _kernel.Load<UIModule>();
+            _kernel.Load<SharedUIModule>();
+
+            _kernel.UseNinjectDependencyResolver();
+        }
+    }
+}