added dispatcher service

Services/ISynchronizaionService.cs

@@ -0,0 +1,8 @@
+using System;
+
+namespace BetterRaid.Services;
+
+public interface ISynchronizaionService
+{
+    void Invoke(Action action);
+}

Services/Implementations/DispatcherService.cs

@@ -0,0 +1,18 @@
+using Avalonia.Threading;
+using System;
+using System.Threading;
+
+namespace BetterRaid.Services.Implementations;
+public class DispatcherService : ISynchronizaionService
+{
+    private readonly Dispatcher dispatcher;
+
+    public DispatcherService(Dispatcher dispatcher)
+    {
+        this.dispatcher = dispatcher;
+    }
+    public void Invoke(Action action)
+    {
+        dispatcher.Invoke(action);
+    }
+}