mise a jour

frontend/src/components/Header.jsx

@@ -1,18 +1,17 @@
 import { useState } from 'react'
 import { Link, useLocation, useNavigate } from 'react-router-dom'
 import logo from '../assets/img/logo.png'
+import { useAuth } from '../context/AuthContext'
 
 export default function Header() {
   const [menuOpen, setMenuOpen] = useState(false)
   const { pathname } = useLocation()
   const navigate = useNavigate()
-
-  const user = JSON.parse(localStorage.getItem('user') || 'null')
+  const { user, logout } = useAuth()
   const isLoggedIn = !!user
 
   const handleLogout = () => {
-    localStorage.removeItem('token')
-    localStorage.removeItem('user')
+    logout()
     setMenuOpen(false)
     navigate('/connexion')
   }