Migrate to Sätteri md renderer

src/pages/blog/[...slug].astro

@@ -3,7 +3,7 @@ import { getCollection, render } from 'astro:content';
 import BaseLayout from '../../layouts/BaseLayout.astro';
 import "katex/dist/katex.min.css";
 // @ts-expect-error Theme is not provided as ".css"
-import "rehype-callouts/theme/obsidian";
+import "satteri-callouts/theme/obsidian";
 
 export async function getStaticPaths() {
   const blogEntries = await getCollection('blog');