Add core UI

app/InkForge.Common/App.axaml.cs

@@ -0,0 +1,45 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+
+using Microsoft.Extensions.Hosting;
+
+using ReactiveUI;
+
+namespace InkForge.Common;
+
+public partial class App : Application
+{
+	public static readonly StyledProperty<IHost> HostProperty = AvaloniaProperty.Register<App, IHost>("Host");
+
+	public IHost Host => GetValue(HostProperty);
+
+	public IServiceProvider Services => Host.Services;
+
+	public override void Initialize()
+	{
+		AvaloniaXamlLoader.Load(this);
+	}
+
+	public override void OnFrameworkInitializationCompleted()
+	{
+		// var viewModel = Services.Activate<MainViewModel>();
+		// var view = ViewLocator.Current.ResolveView(viewModel);
+		// switch (ApplicationLifetime)
+		// {
+		// 	case IClassicDesktopStyleApplicationLifetime desktop:
+		// 		desktop.MainWindow = view as Window;
+		// 		break;
+
+		// 	case ISingleViewApplicationLifetime singleView:
+		// 		singleView.MainView = view as Control;
+		// 		break;
+
+		// 	default:
+		// 		throw new NotSupportedException();
+		// }
+
+		base.OnFrameworkInitializationCompleted();
+	}
+}