minor bug fix

src/user-profile/category-routes.ts

@@ -71,7 +71,7 @@ categoryRoutes.post('/add/', jwtAuthentication, async (request, response) => {
             }
         });
         
-        response.send(200);
+        response.status(200);
         response.send(newCategory.insertedId.toHexString());
     } catch(e) {
         response.sendStatus(500);