add notification delete route

src/notification/notification.service.ts

@@ -90,6 +90,12 @@ export async function listNotifications(
   };
 }
 
+export async function deleteNotification(notifId: string, tenantId: string) {
+  return await notificationModel.deleteOne({
+    $and: [{ tenantId: tenantId }, { pid: notifId }],
+  });
+}
+
 export async function getUniqueValuesNotification(
   field: string,
   tenenatId: string