Add "Ayuda" page and update navigation to support new view

Introduced the `HelpPage` component to provide user guidance, troubleshooting tips, and quick-start instructions. Updated navigation and dynamic header title logic to include the new "help" view. Adjusted `App.js` to handle the new view state and display `HelpPage`.

src/App.js

@@ -8,6 +8,7 @@ import ScheduledPage from './components/Scheduled/ScheduledPage';
 import NewRequestPage from './components/Requests/NewRequestPage';
 import HistoryPage from './components/History/HistoryPage';
 import SettingsPage from './components/Settings/SettingsPage';
+import HelpPage from './components/Help/HelpPage';
 
 function App() {
   const [isMobileMenuOpen, setIsMobileMenuOpen] = useState(false);
@@ -60,6 +61,8 @@ function App() {
     ? 'Historial'
     : activeView === 'settings'
     ? 'Configuración'
+    : activeView === 'help'
+    ? 'Ayuda'
     : 'Dashboard';
 
   return (
@@ -80,6 +83,8 @@ function App() {
           <HistoryPage />
         ) : activeView === 'settings' ? (
           <SettingsPage />
+        ) : activeView === 'help' ? (
+          <HelpPage />
         ) : (
           <section className="content-wrapper">
             <DashboardCards />