feat: Update ThemesMarketplace to use lazy loading for images

src/app/themes/page.tsx

@@ -5,21 +5,10 @@ import { Navigation } from "@/components/navigation";
 import { getAllThemes, ZenTheme } from "@/lib/themes";
 import { GetStaticProps } from "next";
 
-export const getStaticProps = (async (context) => {
-  const themes = await getAllThemes();
-  return {
-    props: {
-      themes,
-    },
-  };
-}) satisfies GetStaticProps<{
-  themes: ZenTheme[];
-}>
-
-export default function ThemesMarketplace({ themes }: {themes:ZenTheme[]}) {
+export default async function ThemesMarketplace() {
   return (
     <main className="flex min-h-screen flex-col items-center justify-start">
-      <MarketplacePage themes={themes} />
+      <MarketplacePage themes={await getAllThemes()} />
       <Footer />  
       <Navigation /> {/* At the bottom of the page */}
     </main>