Aggiunge il wordmark NexStudio con O quantum nell'header.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/pages/index.astro

@@ -78,11 +78,15 @@ const langMeta = {
       <div
         class="mx-auto flex max-w-6xl items-center justify-between gap-4 px-4 py-3 sm:px-6"
       >
-        <a href={localize('/')} class="group no-underline">
-          <span
-            class="text-2xl font-semibold tracking-tight text-nx-fg group-hover:text-white sm:text-3xl"
-            >{navigation.brandName}</span
-          >
+        <a href={localize('/')} class="group no-underline" aria-label={navigation.brandName}>
+          <img
+            src="/logos/nexstudio.png"
+            alt={navigation.brandName}
+            class="h-7 w-auto sm:h-8"
+            width="168"
+            height="30"
+            decoding="async"
+          />
         </a>
 
         <nav