fix: cleanup

frontend/src/App.tsx

@@ -1,4 +1,4 @@
-import React, { lazy, Suspense, useState } from "react";
+import React, { lazy, Suspense } from "react";
 import { BrowserRouter, Navigate, Route, Routes, useParams } from "react-router-dom";
 import { AuthProvider, useAuth } from "./context/AuthContext";
 import { I18nProvider } from "./i18n/I18nProvider";
@@ -13,14 +13,7 @@ const SettingsPage = lazy(() => import("./pages/Settings").then((m) => ({ defaul
 const BookmarksNotesPage = lazy(() => import("./components/annotations/BookmarksNotesPage").then((m) => ({ default: m.BookmarksNotesPage })));
 const ReadingPage = lazy(() => import("./pages/ReadingPage").then((m) => ({ default: m.default })));
 
-const AuthPage = lazy(() =>
-  import("./pages/AuthPage").then((m) => ({
-    default: () => {
-      const [isLogin, setIsLogin] = useState(true);
-      return isLogin ? <m.LoginPage onToggle={() => setIsLogin(false)} /> : <m.RegisterPage onToggle={() => setIsLogin(true)} />;
-    },
-  })),
-);
+const AuthPage = lazy(() => import("./pages/AuthPage"));
 
 function LoadingFallback() {
   const { t } = useTranslation();