add getStaticPaths for 404 page

packages/website/src/pages/[...chunk_default]/404.astro

@@ -5,6 +5,8 @@ import { LinkI18n } from "../../components/LinkI18n";
 import { PageWrapper } from "../../components/PageWrapper";
 import BaseLayout from "../../layouts/BaseLayout.astro";
 
+export { getStaticPaths } from "./_index";
+
 const { locale } = Astro.props;
 ---