message: better error when notification not found
diff: @@ -236,9 +236,11 @@ const addNotificationToProject = sqlClient => async (cred, input) => {
  throw new Error('Unauthorized.');
  }
  }
  -
  const rows = await query(sqlClient, Sql.selectProjectNotification(input));
  const projectNotification = R.path([0], rows);
  + if (!projectNotification) {
  + throw new Error(`Could not find notification '${input.notificationName}' of type '${input.notificationType}'`);
  + }
  projectNotification.notificationType = input.notificationType;
  const result = await query(
  