Update blog post title font weight

Author: AVGVSTVS96

src/pages/blog.astro

@@ -6,7 +6,7 @@ import MainLayout from '../layouts/MainLayout.astro';
 <MainLayout>
   <div class="container flex flex-col items-center">
     <div class="w-fit">
-      <h1 class="text-4xl font-bold text-slate-200 mb-4">Blog Posts</h1>
+      <h1 class="text-4xl font-extrabold text-slate-200 mb-4">Blog Posts</h1>
       <BlogIndex styles="w-[860px]" />
     </div>
   </div>