Wrap FluentAvalonia controls within same named classes allowing us to declare the xmlns namespace in our assembly

Framework/Foundation/Navigation/INavigationConfirmation.cs

@@ -0,0 +1,13 @@
+
+namespace Toolkit.Foundation
+{
+    public interface INavigationConfirmation
+    {
+        ValueTask<bool> CanConfirm();
+    }
+
+    public interface INavigated
+    {
+        ValueTask Navigated();
+    }
+}