feat: Enable iOS push notifications and improve APNS token retrieval.

lib/services/notification_service.dart

@@ -62,11 +62,11 @@ class NotificationService {
       if (Platform.isIOS) {
         String? apnsToken = await _firebaseMessaging.getAPNSToken();
         int retries = 0;
-        while (apnsToken == null && retries < 3) {
+        while (apnsToken == null && retries < 10) {
           LoggerService.info(
-            'Waiting for APNS token... (Attempt ${retries + 1}/3)',
+            'Waiting for APNS token... (Attempt ${retries + 1}/10)',
           );
-          await Future.delayed(const Duration(seconds: 1));
+          await Future.delayed(const Duration(seconds: 2));
           apnsToken = await _firebaseMessaging.getAPNSToken();
           retries++;
         }