feat: Enhance application structure with new Prueba_appshell page and responsive navbar; update dependencies

frontend/src/Router.tsx

@@ -2,6 +2,7 @@ import { createBrowserRouter, RouterProvider } from 'react-router-dom';
 import { HomePage } from './pages/Home.page';
 import { Consulta_API } from './pages/Consulta_api';
 import { Error_404 } from './pages/404'; // Ajusta si está en otra carpeta
+import { Prueba_appshell } from './pages/Prueba_appshell'; // Ajusta si está en otra carpeta
 
 const router = createBrowserRouter([
   {
@@ -12,6 +13,10 @@ const router = createBrowserRouter([
     path: '/Consulta_API',
     element: <Consulta_API />,
   },
+  {
+    path: '/prueba_appshell',
+    element: <Prueba_appshell />,
+  },
   {
     path: '*',
     element: <Error_404 />,