fix: increase footer logo size 32→48px

Author: dcoldeira

index.html

@@ -1187,7 +1187,7 @@ <h2>Ready to ask quantum questions?</h2>
   <!-- ── Footer ── -->
   <footer>
     <div>
-      <img src="entangledcode-logo.svg" alt="Entangled Code" height="32">
+      <img src="entangledcode-logo.svg" alt="Entangled Code" height="48">
     </div>
     <div class="footer-links">
       <a href="https://bell.entangledcode.dev">Bell app</a>