feat: add fediverse:creator meta

Author: julien-deramond

src/components/Head.astro

@@ -67,6 +67,7 @@ if (isArticle) {
 <Default {...Astro.props}><slot /></Default>
 
 <meta name="author" content="Open {re}Source" />
+<meta name="fediverse:creator" content="@[email protected]" />
 
 <meta property="og:image" content={ogImageUrl} />
 <meta property="og:image:alt" content={data.title + (data.description ? '—' + data.description : '')} />