Fix the docs "View & Edit" link: add the .mdx extension and point it at main

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: julien-deramond

site/src/components/PageMeta.astro

@@ -142,7 +142,7 @@ const depsTitles = deps.map((dep) => dep.title).join(', ')
     <svg class="bi fg-2" aria-hidden="true"><use href="#github"></use></svg>
     <a
       class="fg-2 text-decoration-none"
-      href={`${getConfig().repo}/blob/v${getConfig().current_version}/site/src/content/docs/${id}`}
+      href={`${getConfig().repo}/blob/main/site/src/content/docs/${id}.mdx`}
       target="_blank"
       rel="noopener">View & Edit</a
     >