refactor(website): extract layouts and use more server components (#9027)

Closes https://github.com/discordjs/discord.js/issues/8920
Closes https://github.com/discordjs/discord.js/issues/8997

apps/website/src/components/documentation/Documentation.tsx

@@ -0,0 +1,8 @@
+import type { PropsWithChildren } from 'react';
+
+/**
+ * Layout parent of documentation pages.
+ */
+export function Documentation({ children }: PropsWithChildren) {
+	return <div className="w-full flex-col space-y-4">{children}</div>;
+}