perf: try executing script with defer

Author: dslovinsky

fern/home/index.mdx

@@ -7,7 +7,7 @@ hide-feedback: true
 import { AlchemyFooter } from "../components/Footer.tsx";
 
 <div className="homepage-content">
-  <script src="/dist/output.js" async></script>
+  <script src="/dist/output.js" defer></script>
   <div className="products">
     <h2 id="build-anything-onchain" data-state="closed">Build anything onchain</h2>
     <div className="my-6 grid gap-4 first:mt-0 sm:gap-6 grid-cols-1 sm:grid-cols-2">