Topic/1126 enable html email

coscine/issues#1126

src/NotificationBus/Controller/NotificationBusController.cs

@@ -55,7 +55,6 @@ namespace Coscine.Api.NotificationBus.Controllers
 
         private async Task SendNotifications(NotificationParameterObject notificationParameterObject)
         {
-            List<User> users = GetUsers(notificationParameterObject.UserIds);
             Project project = GetProject(notificationParameterObject.ProjectId);
             var action = notificationParameterObject.Action;
             ActionObject actionObject = _notificationConfiguration.GetAction(action);
@@ -84,7 +83,7 @@ namespace Coscine.Api.NotificationBus.Controllers
                 }
 
                 // for every available user
-                foreach (User user in users)
+                foreach (User user in notificationParameterObject.Users)
                 {
                     JObject messageData = FillTemplate(channelName, actionObject, notificationParameterObject.Args, user, project);