✨ frontend add

frontend/admin/src/pages/_error/index.tsx

@@ -0,0 +1,19 @@
+import React from 'react'
+import { NextPageContext } from 'next'
+
+const Error = ({ statusCode }) => {
+  return (
+    <p>
+      {statusCode
+        ? `An error ${statusCode} occurred on server`
+        : 'An error occurred on client'}
+    </p>
+  )
+}
+
+Error.getInitialProps = ({ res, err }: NextPageContext) => {
+  const statusCode = res ? res.statusCode : err ? err.statusCode : 404
+  return { statusCode }
+}
+
+export default Error