Fix new API support

lib/helpers/conversations_helper.dart

@@ -210,7 +210,7 @@ class ConversationsHelper {
       name: map["name"] == false ? null : map["name"],
       following: map["following"] == 1,
       sawLastMessage: map["saw_last_message"] == 1,
-      members: map["members"].map<int>((f) => int.parse(f)).toList(),
+      members: List<int>.from(map["members"]),
     );
   }