Finish admin dashboard and update sql code

backend/routes/review.js

@@ -0,0 +1,9 @@
+// routes/product.js
+const express = require("express");
+const { getReviews, submitReview } = require("../controllers/review");
+const router = express.Router();
+
+router.get("/:id", getReviews);
+router.post("/add", submitReview);
+
+module.exports = router;