Fixed Missing "Delivery" option from Digital Form "AppliesTo" drop-down list

prs.classes/Entities/DeliveryItem/Delivery.cs

@@ -11,7 +11,7 @@ namespace Comal.Classes
     
     [Caption("Digital Forms")]
     [UserTracking("Digital Forms")]
-    public class DeliveryForm : EntityForm<Delivery, DeliveryLink, DeliveryForm>
+    public class DeliveryForm : EntityForm<Delivery, DeliveryLink, DeliveryForm>, IDigitalForm<Delivery>
     {
         public override string AutoIncrementPrefix() => "DF";
     }