Got the new ui flow working and the models updated. Need to get changes written to the database.

OpenArchivel.Controller/IAddArchiveGroupingController.cs

@@ -0,0 +1,13 @@
+using OpenArchival.DataAccess;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OpenArchival.Controller;
+
+public interface IAddArchiveGroupingController
+{
+    public void CategoryAdded(ArchiveCategory category);
+}