Improve the frontend 2

frontend/src/App.tsx

@@ -10,6 +10,7 @@ import { AppRouter } from './router/AppRouter';
 import { ThemeProvider } from './contexts/ThemeContext';
 import { AuthProvider } from './contexts/AuthContext';
 import { SSEProvider } from './contexts/SSEContext';
+import { SubscriptionEventsProvider } from './contexts/SubscriptionEventsContext';
 import GlobalSubscriptionHandler from './components/auth/GlobalSubscriptionHandler';
 import { CookieBanner } from './components/ui/CookieConsent';
 import i18n from './i18n';
@@ -63,7 +64,9 @@ function App() {
             <ThemeProvider>
               <AuthProvider>
                 <SSEProvider>
-                  <AppContent />
+                  <SubscriptionEventsProvider>
+                    <AppContent />
+                  </SubscriptionEventsProvider>
                 </SSEProvider>
               </AuthProvider>
             </ThemeProvider>
@@ -75,4 +78,4 @@ function App() {
   );
 }
 
-export default App;
+export default App;