feat: Upgrade Firebase Functions dependencies, enhance notification service with APNS support and FCM

lib/components/account/group_expenses_page.dart

@@ -213,8 +213,8 @@ class _GroupExpensesPageState extends State<GroupExpensesPage>
         ),
       ),
       floatingActionButton: FloatingActionButton(
+        heroTag: 'group_expenses_fab',
         onPressed: _showAddExpenseDialog,
-        heroTag: "add_expense_fab",
         backgroundColor: Colors.blue,
         foregroundColor: Colors.white,
         elevation: 4,

lib/components/home/home_content.dart

@@ -155,6 +155,7 @@ class _HomeContentState extends State<HomeContent>
                 ),
               ),
               floatingActionButton: FloatingActionButton(
+                heroTag: 'home_fab',
                 onPressed: () async {
                   final tripBloc = context.read<TripBloc>();
 

lib/components/map/map_content.dart

@@ -663,6 +663,7 @@ class _MapContentState extends State<MapContent> {
       ),
 
       floatingActionButton: FloatingActionButton(
+        heroTag: 'map_fab',
         onPressed: _getCurrentLocation,
         tooltip: 'Ma position',
         child: const Icon(Icons.my_location),