Finish admin dashboard and update sql code

backend/routes/category.js

@@ -0,0 +1,14 @@
+const express = require("express");
+const {
+  getAllCategoriesWithPagination,
+  addCategory,
+  removeCategory,
+} = require("../controllers/category");
+
+const router = express.Router();
+
+router.get("/getCategories", getAllCategoriesWithPagination);
+router.post("/addCategory", addCategory);
+router.delete("/:id", removeCategory);
+
+module.exports = router;