add login/sign-up page with dark/light mode

node_modules/next/dist/export/index.d.ts

@@ -0,0 +1,8 @@
+import type { ExportAppResult, ExportAppOptions } from './types';
+import { type StaticWorker } from '../build';
+import '../server/require-hook';
+import type { Span } from '../trace';
+export declare class ExportError extends Error {
+    code: string;
+}
+export default function exportApp(dir: string, options: ExportAppOptions, span: Span, staticWorker?: StaticWorker): Promise<ExportAppResult | null>;