fixes to the calculator

public/product/agent-sandbox/index.html

@@ -6,6 +6,9 @@
 <title>Agent Sandbox · Federated Computer</title>
 <meta name="description" content="Thousands of AI agents running on one machine, zero risk. High-density, instant-wake AI agents that run entire teams of specialized workers, safely isolated.">
 <meta name="theme-color" content="#001a2b">
+<link rel="icon" href="../../favicon.ico" sizes="32x32">
+<link rel="icon" href="../../favicon.svg" type="image/svg+xml">
+<link rel="apple-touch-icon" href="../../apple-touch-icon.png">
 <link rel="preconnect" href="https://fonts.googleapis.com">
 <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
 <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">