feat(frontend): add page titles to navbar on mobile

- Save vertical space on mobile by showing page title in navbar
- Mobile: "spotlight.cam - {PageTitle}" instead of separate h1
- Desktop: unchanged - page titles remain as separate headings
- Saves ~60-80px vertical space on mobile devices

Pages updated:
- Dashboard, Events, Matches, History, Profile

frontend/src/components/layout/Layout.jsx

@@ -1,13 +1,13 @@
 import Navbar from './Navbar';
 
-const Layout = ({ children, fullWidth = false, noPadding = false }) => {
+const Layout = ({ children, fullWidth = false, noPadding = false, pageTitle = null }) => {
   const mainClasses = fullWidth || noPadding
     ? "flex-1 flex flex-col"
     : "max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8";
 
   return (
     <div className="min-h-screen bg-gray-50 flex flex-col">
-      <Navbar />
+      <Navbar pageTitle={pageTitle} />
       <main className={mainClasses}>
         {children}
       </main>

frontend/src/components/layout/Navbar.jsx

@@ -7,7 +7,7 @@ import { matchesAPI } from '../../services/api';
 import { connectSocket, disconnectSocket, getSocket } from '../../services/socket';
 import { MATCH_STATUS } from '../../constants';
 
-const Navbar = () => {
+const Navbar = ({ pageTitle = null }) => {
   const { user, logout } = useAuth();
   const navigate = useNavigate();
   const [pendingMatchesCount, setPendingMatchesCount] = useState(0);
@@ -67,7 +67,12 @@ const Navbar = () => {
           <div className="flex items-center">
             <Link to="/dashboard" className="flex items-center space-x-2">
               <Video className="w-8 h-8 text-primary-600" />
-              <span className="text-xl font-bold text-gray-900">spotlight.cam</span>
+              <span className="text-xl font-bold text-gray-900">
+                <span className="hidden lg:inline">spotlight.cam</span>
+                <span className="lg:hidden">
+                  {pageTitle ? `spotlight.cam - ${pageTitle}` : 'spotlight.cam'}
+                </span>
+              </span>
             </Link>
           </div>
           {/* Desktop menu */}