feat: add i18n and avatar upload

apps/frontend/src/App.tsx

@@ -4,6 +4,7 @@ import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { Toaster } from 'sonner';
 import { router } from './routes';
 import { useAuthStore } from './features/auth/authStore';
+import { I18nProvider } from './i18n/i18n';
 
 const queryClient = new QueryClient({
   defaultOptions: {
@@ -24,11 +25,13 @@ function AuthBoot({ children }: { children: React.ReactNode }) {
 
 export function App() {
   return (
-    <QueryClientProvider client={queryClient}>
-      <AuthBoot>
-        <RouterProvider router={router} />
-      </AuthBoot>
-      <Toaster position="top-center" richColors closeButton />
-    </QueryClientProvider>
+    <I18nProvider>
+      <QueryClientProvider client={queryClient}>
+        <AuthBoot>
+          <RouterProvider router={router} />
+        </AuthBoot>
+        <Toaster position="top-center" richColors closeButton />
+      </QueryClientProvider>
+    </I18nProvider>
   );
 }