remove deprecations, remove header when scrolling

vue/src/router/index.js

@@ -31,23 +31,13 @@ const router = createRouter({
 
   ]
 })
-router.beforeEach((to, from, next) => {
-  if (to.meta.requiresAuth) {
-    let isAuthenticated = false;
-    if (localStorage.getItem("user-token") != null){
-      isAuthenticated = true;
-    }
-
-    if (!isAuthenticated) {
-      // Redirect to the login page
-      next('/login');
-    } else {
-      // Proceed to the protected route
-      next();
-    }
-  } else {
-    // For routes that don't require authentication, proceed without checking
-    next();
+router.beforeEach((to) => {
+  const isAuthenticated = localStorage.getItem("user-token") != null;
+  // Redirect unauthenticated users hitting a protected route to login;
+  // returning a value (instead of the deprecated next() callback) is the
+  // modern vue-router guard API. Returning nothing lets navigation proceed.
+  if (to.meta.requiresAuth && !isAuthenticated) {
+    return '/login';
   }
 });
 export default router