fix: replace Quantum AI badge with Quantum Physics Modeling on hero

Author: dcoldeira

index.html

@@ -599,7 +599,7 @@
   <section class="hero">
     <div class="hero-badge">
       <div class="dot"></div>
-      Quantum AI — Early Access
+      Quantum Physics Modeling — Early Access
     </div>
 
     <h1>Ask quantum questions.<br><span class="highlight">Get quantum answers.</span></h1>