feat: make server own products

lib/viewmodels/remote_sync_view_model.dart

@@ -35,6 +35,11 @@ class RemoteSyncViewModel extends ChangeNotifier {
   String? _lastError;
   String? get lastError => _lastError;
 
+  bool _isOffline = false;
+
+  /// The last sync failed for lack of a connection, not because of an error.
+  bool get isOffline => _isOffline;
+
   String? _venueId;
   String? get venueId => _venueId;
 
@@ -109,8 +114,10 @@ class RemoteSyncViewModel extends ChangeNotifier {
       case RemoteSyncEventType.syncCompleted:
         _lastSyncAt = DateTime.now();
         _lastError = null;
+        _isOffline = false;
       case RemoteSyncEventType.syncFailed:
         _lastError = event.message;
+        _isOffline = event.offline;
       case RemoteSyncEventType.unauthorized:
         _isConfigured = false;
         _wasRevoked = true;