feat: Replace Navbar tooltip with native title attribute and introduce onToggleOpen prop for Drawer close functionality.

src/app/page.tsx

@@ -42,6 +42,7 @@ export default function HomePage() {
         onSelect={setSelectedShop}
         onClose={() => setSelectedShop(null)}
         isOpen={isDiscoveryOpen}
+        onToggleOpen={() => setIsDiscoveryOpen(false)}
       />
       <WelcomeModal />
     </main>