strip whitespace from addresses

one more tweak...

shared/workspaces/workspaces/notification/services/notification_service.py

@@ -71,8 +71,8 @@ class NotificationService(NotificationServiceIF):
         if isinstance(parameters["destination_email"], list):
             receiver_emails = parameters["destination_email"]
         else:
-            # sometimes the list gets passed in as a string, split it if needed
-            receiver_emails = parameters["destination_email"].split(",")
+            # sometimes the list gets passed in as a string, split it if needed and strip extra spaces
+            receiver_emails = [address.strip() for address in parameters["destination_email"].split(",")]
 
         # Let's not send emails into the void
         if not receiver_emails: