Finish admin dashboard and update sql code

frontend/src/components/DashboardNav.jsx

@@ -0,0 +1,83 @@
+import { Link, NavLink } from "react-router-dom";
+import { FaUserTag } from "react-icons/fa";
+import { FaBoxArchive } from "react-icons/fa6";
+import { MdOutlineCategory } from "react-icons/md";
+import { FaArrowLeft } from "react-icons/fa";
+
+export default function DashboardNav({ handleCloseAdminDashboard }) {
+  const handleClick = () => {
+    handleCloseAdminDashboard();
+  };
+
+  return (
+    <div>
+      <div className="w-3xs h-screen bg-green-700 border border-green-700">
+        <ul>
+          <li>
+            <div className="flex-shrink-0 p-6 bg-green-200">
+              <Link to="/admin" className="flex items-center">
+                <img
+                  src="/icon/icon-512.png"
+                  alt="Campus Plug"
+                  className="h-8 px-2 "
+                />
+                <span className="hidden md:block text-green-700 font-bold text-2xl">
+                  Campus Plug
+                </span>
+              </Link>
+            </div>
+          </li>
+          <li className="w-fit pl-10">
+            <NavLink
+              to="/admin/user"
+              className={({ isActive }) =>
+                (isActive
+                  ? " text-green-400"
+                  : "text-white transition-all hover:text-green-200") +
+                " flex items-center px-5 text-lg pt-5 "
+              }
+            >
+              <FaUserTag />
+              <span className="pl-3">Users</span>
+            </NavLink>
+          </li>
+          <li className="w-fit pl-10">
+            <NavLink
+              to="/admin/product"
+              className={({ isActive }) =>
+                (isActive
+                  ? "text-green-400"
+                  : "text-white transition-all hover:text-green-200") +
+                " flex items-center px-5 text-lg pt-5"
+              }
+            >
+              <FaBoxArchive />
+              <span className="pl-3">Products</span>
+            </NavLink>
+          </li>
+          <li className="w-fit pl-10">
+            <NavLink
+              to="/admin/category"
+              className={({ isActive }) =>
+                (isActive
+                  ? "text-green-400"
+                  : "text-white transition-all hover:text-green-200") +
+                " flex items-center px-5 text-lg pt-5"
+              }
+            >
+              <MdOutlineCategory />
+              <span className="pl-3">Categories</span>
+            </NavLink>
+          </li>
+        </ul>
+        <div
+          onClick={handleClick}
+          className=" text-center my-8 underline text-white underline-offset-4 flex justify-center items-center hover:cursor-pointer h-fit w-fit mx-auto hover:text-green-200 transition"
+        >
+          <FaArrowLeft className="text-sm mx-2 mt-1" />
+          <span>Go back to user page</span>
+        </div>
+      </div>
+    </div>
+  );
+}