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

node_modules/next/dist/pages/_error.d.ts

@@ -0,0 +1,19 @@
+import React from 'react';
+import type { NextPageContext } from '../shared/lib/utils';
+export type ErrorProps = {
+    statusCode: number;
+    hostname?: string;
+    title?: string;
+    withDarkMode?: boolean;
+};
+declare function _getInitialProps({ req, res, err, }: NextPageContext): Promise<ErrorProps> | ErrorProps;
+/**
+ * `Error` component used for handling errors.
+ */
+export default class Error<P = {}> extends React.Component<P & ErrorProps> {
+    static displayName: string;
+    static getInitialProps: typeof _getInitialProps;
+    static origGetInitialProps: typeof _getInitialProps;
+    render(): import("react/jsx-runtime").JSX.Element;
+}
+export {};