Prompt users to book classes with a clear call-to-action button

Adds a "Book a Class Now" button with custom styling to ClassesSection.tsx.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: d004b9e1-f9be-46e2-acda-f440ccd644a9
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/af8dabca-e746-4e53-9c29-d8d4d9cf30f5/ecc09ee7-7096-4a54-9152-ed822ecb4d91.jpg

client/src/components/classes/classes-section.tsx

@@ -54,6 +54,14 @@ export function ClassesSection() {
             ))}
           </div>
         )}
+        
+        <div className="text-center mt-12">
+          <Link to="/calendar">
+            <button className="px-8 py-3 bg-rose-800 text-white font-bold rounded-full hover:bg-rose-900 transition duration-300 shadow-md">
+              Book a Class Now
+            </button>
+          </Link>
+        </div>
       </div>
     </section>
   );