Reduced the width of the image border on blog posts

src/layouts/BlogPost.astro

@@ -26,7 +26,7 @@ const { slug, title, description, pubDate, updatedDate, heroImage } =
           {
             heroImage && (
               <img
-                class='block mx-auto my-0 border-8 shadow-sm'
+                class='block mx-auto my-0 border-4'
                 transition:name={`post-${slug}`}
                 transition:animate='initial'
                 src={heroImage}