feat: Add next login page with shadcn/ui #3221 (#3231)

### What problem does this PR solve?

feat: Add next login page with shadcn/ui  #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/routes.ts

@@ -4,6 +4,11 @@ const routes = [
     component: '@/pages/login',
     layout: false,
   },
+  {
+    path: '/login-next',
+    component: '@/pages/login-next',
+    layout: false,
+  },
   {
     path: '/chat/share',
     component: '@/pages/chat/share',
@@ -116,6 +121,11 @@ const routes = [
     component: '@/pages/404',
     layout: false,
   },
+  {
+    path: '/demo',
+    component: '@/pages/demo',
+    layout: false,
+  },
 ];
 
 export default routes;