big refactoring. get rid of static properties and coupled architecture. prepare system for integration tests

Azaion.Common/Services/WpfUICommandDispatcher.cs

@@ -0,0 +1,29 @@
+using System.Windows.Threading;
+
+namespace Azaion.Common.Services;
+
+public class WpfUICommandDispatcher : IUICommandDispatcher
+{
+    private readonly Dispatcher _dispatcher;
+
+    public WpfUICommandDispatcher(Dispatcher dispatcher)
+    {
+        _dispatcher = dispatcher;
+    }
+
+    public Task ExecuteAsync(Action action)
+    {
+        return _dispatcher.InvokeAsync(action).Task;
+    }
+
+    public Task<T> ExecuteAsync<T>(Func<T> func)
+    {
+        return _dispatcher.InvokeAsync(func).Task;
+    }
+
+    public void Execute(Action action)
+    {
+        _dispatcher.Invoke(action);
+    }
+}
+