Refactor Prose component styles to enhance link visibility and interaction

Author: brylie

src/components/Prose.astro

@@ -4,9 +4,7 @@
 
 <div
   class="prose
-  prose-h1:font-bold prose-h1:text-xl
-  prose-a:text-blue-600 prose-p:text-justify prose-img:rounded-xl
-  prose-headings:underline"
+  prose-a:text-blue-600 prose-a:hover:text-blue-500 prose-a:visited:text-purple-600 prose-img:rounded-xl"
 >
   <slot />
 </div>