replaced account data singleton with a session model

lib/state/app/infrastructure/utility_widgets/loadable_hydrated_bloc/loadable_hydrated_bloc.dart

@@ -5,7 +5,7 @@ import 'package:hydrated_bloc/hydrated_bloc.dart';
 
 import '../../../../../api/errors/error_mapper.dart';
 import '../../../../../api/errors/stale_session_exception.dart';
-import '../../../../../model/account_data.dart';
+import '../../../../../session/session_manager.dart';
 import '../../../../../utils/session_single_flight.dart';
 import '../../loadable_state/loadable_state.dart';
 import '../../loadable_state/loading_error.dart';
@@ -132,12 +132,12 @@ abstract class LoadableHydratedBloc<
   /// its async continuations, are dropped once the account signed out, so a
   /// late response of the previous account cannot refill the reset bloc.
   R runInSession<R>(R Function() body) =>
-      runZoned(body, zoneValues: {_sessionKey: AccountData().sessionEpoch});
+      runZoned(body, zoneValues: {_sessionKey: SessionManager().sessionEpoch});
 
   @override
   void add(LoadableHydratedBlocEvent<TState> event) {
     final epoch = Zone.current[_sessionKey];
-    if (epoch is int && !AccountData().isCurrentSession(epoch)) return;
+    if (epoch is int && !SessionManager().isCurrentSession(epoch)) return;
     super.add(event);
   }