Add mobile bottom nav and hide header avatar on small screens.

Frontdesk now matches the Ladill mobile pattern: app name in the header,
Home/Search/Notifications/Profile in the bottom bar with a profile sheet.

Co-authored-by: Cursor <cursoragent@cursor.com>

resources/views/partials/topbar.blade.php

@@ -9,8 +9,8 @@
             <svg class="h-6 w-6" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16"/></svg>
         </button>
 
-        {{-- Mobile: current page title --}}
-        <h1 class="truncate text-base font-semibold text-slate-900 lg:hidden">{{ $heading ?? 'Ladill Frontdesk' }}</h1>
+        {{-- Mobile: app name --}}
+        @include('partials.mobile-topbar-title')
 
         {{-- Desktop: search (visitors) --}}
         <form method="GET" action="{{ route('frontdesk.visitors.index') }}"