feat: Make header logo and title clickable to navigate to booking page

- Add cursor-pointer and hover effects to header logo area
- Clicking on logo/title now navigates to booking tab
- Improves user experience with clear navigation hint

src/client/app.tsx

@@ -52,7 +52,10 @@ function App() {
       <header className="bg-white shadow-sm border-b border-pink-100">
         <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
             <div className="flex justify-between items-center py-6">
-            <div className="flex items-center space-x-3">
+            <div 
+              className="flex items-center space-x-3 cursor-pointer hover:opacity-80 transition-opacity"
+              onClick={() => setActiveTab("booking")}
+            >
               <img 
                 src="/assets/stargilnails_logo_transparent_112.png" 
                 alt="Stargil Nails Logo"