Add icons

Wallet.Avalonia/ApplicationSplashScreen.cs

@@ -0,0 +1,21 @@
+using Avalonia.Media;
+using FluentAvalonia.UI.Windowing;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Wallet.Avalonia;
+
+public class ApplicationSplashScreen :
+    IApplicationSplashScreen
+{
+    public string? AppName { get; }
+
+    public IImage? AppIcon { get; }
+
+    public object SplashScreenContent => new SplashView();
+
+    public int MinimumShowTime => 2000;
+
+    public Task RunTasks(CancellationToken cancellationToken) => 
+        Task.CompletedTask;
+}