Upgraded to next v15 and eslint to v9

src/components/navbar.tsx

@@ -1,7 +1,7 @@
 'use client';
 import Image from 'next/image';
 import Link from 'next/link';
-import React, { useEffect, useRef, useState } from 'react';
+import { useEffect, useRef, useState } from 'react';
 import { FiSearch, FiUser } from 'react-icons/fi';
 import { HiShoppingBag } from 'react-icons/hi2';