TF-1289: [Data] implement storeSubscription in fcm datasource

lib/features/caching/config/hive_cache_config.dart

@@ -19,6 +19,7 @@ import 'package:tmail_ui_user/features/mailbox/data/model/mailbox_rights_cache.d
 import 'package:tmail_ui_user/features/mailbox/data/model/state_cache.dart';
 import 'package:tmail_ui_user/features/mailbox/data/model/state_type.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/data/model/recent_search_cache.dart';
+import 'package:tmail_ui_user/features/push_notification/data/model/fcm_subscription.dart';
 import 'package:tmail_ui_user/features/thread/data/model/email_address_hive_cache.dart';
 import 'package:tmail_ui_user/features/thread/data/model/email_cache.dart';
 
@@ -118,6 +119,10 @@ class HiveCacheConfig {
       RecentLoginUsernameCacheAdapter(),
       CachingConstants.RECENT_LOGIN_USERNAME_HIVE_CACHE_IDENTITY
     );
+     registerCacheAdapter<FCMSubscriptionCache>(
+      FCMSubscriptionCacheAdapter(),
+      CachingConstants.FCM_SUBSCRIPTION_HIVE_CACHE_INDENTITY
+    );
   }
 
   void registerCacheAdapter<T>(TypeAdapter<T> typeAdapter, int typeId) {

lib/features/caching/subscription_cache_client.dart

@@ -0,0 +1,9 @@
+
+import 'package:tmail_ui_user/features/caching/config/hive_cache_client.dart';
+import 'package:tmail_ui_user/features/push_notification/data/model/fcm_subscription.dart';
+
+class FCMSubscriptionCacheClient extends HiveCacheClient<FCMSubscriptionCache> {
+
+  @override
+  String get tableName => 'FCMSubscriptionCache';
+}

lib/features/caching/utils/caching_constants.dart

@@ -13,4 +13,5 @@ class CachingConstants {
   static const int AUTHENTICATION_INFO_HIVE_CACHE_IDENTIFY = 11;
   static const int RECENT_LOGIN_URL_HIVE_CACHE_IDENTITY = 12;
   static const int RECENT_LOGIN_USERNAME_HIVE_CACHE_IDENTITY = 13;
+  static const int FCM_SUBSCRIPTION_HIVE_CACHE_INDENTITY = 14;
 }