move 404 to pages chunk

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

@@ -0,0 +1,29 @@
+---
+import { DiscordLogoIcon, HomeIcon } from "@radix-ui/react-icons";
+import { Button, Flex, Heading, Link, Text } from "@radix-ui/themes";
+import { LinkI18n } from "../../components/LinkI18n";
+import { PageWrapper } from "../../components/PageWrapper";
+import BaseLayout from "../../layouts/BaseLayout.astro";
+
+const { locale } = Astro.props;
+---
+
+<BaseLayout {locale}>
+  <PageWrapper align="center" justify="center" gap="0">
+    <Heading>404: page not found</Heading>
+    <Text color="gray">Where would you like to go?</Text>
+
+    <Flex mt="4" gap="2">
+      <LinkI18n {locale} href="/">
+        <Button>
+          <HomeIcon /> Home
+        </Button>
+      </LinkI18n>
+      <Link href="https://discord.gg/nDt7AjGJQH">
+        <Button variant="outline">
+          <DiscordLogoIcon /> Discord
+        </Button>
+      </Link>
+    </Flex>
+  </PageWrapper>
+</BaseLayout>