Fix missing DOM namespace

Author: MCGPPeters

Abies.Conduit/Main.cs

@@ -1,5 +1,6 @@
 using Abies.Conduit.Routing;
 using Abies.Conduit.Services;
+using Abies.DOM;
 using System.Threading.Tasks;
 using static Abies.Conduit.Main.Message.Event;
 using static Abies.UrlRequest;