Add "Nueva Solicitud" page and update navigation to support new view

Introduced the `NewRequestPage` component for creating and saving HTTP requests. Updated navigation and dynamic header title logic to include the new "create" view. Adjusted `App.js` to handle the new view state and display `NewRequestPage`.

src/App.js

@@ -5,10 +5,11 @@ import { DashboardCards } from './components/Dashboard';
 import RequestTable from './components/Requests/RequestTable';
 import RequestForm from './components/Requests/RequestForm';
 import ScheduledPage from './components/Scheduled/ScheduledPage';
+import NewRequestPage from './components/Requests/NewRequestPage';
 
 function App() {
   const [isMobileMenuOpen, setIsMobileMenuOpen] = useState(false);
-  const [activeView, setActiveView] = useState('dashboard'); // 'dashboard' | 'scheduled'
+  const [activeView, setActiveView] = useState('dashboard'); // 'dashboard' | 'scheduled' | 'create'
 
   const handleToggleMobileMenu = () => setIsMobileMenuOpen(!isMobileMenuOpen);
   const handleNavigate = (key) => {
@@ -16,7 +17,11 @@ function App() {
     setIsMobileMenuOpen(false);
   };
 
-  const headerTitle = activeView === 'scheduled' ? 'Solicitudes Programadas' : 'Dashboard';
+  const headerTitle = activeView === 'scheduled'
+    ? 'Solicitudes Programadas'
+    : activeView === 'create'
+    ? 'Nueva Solicitud'
+    : 'Dashboard';
 
   return (
     <div className="container">
@@ -30,6 +35,8 @@ function App() {
         <Header title={headerTitle} />
         {activeView === 'scheduled' ? (
           <ScheduledPage />
+        ) : activeView === 'create' ? (
+          <NewRequestPage />
         ) : (
           <section className="content-wrapper">
             <DashboardCards />