Send reaction feature

[limwlee]

Now i was try to send reaction to the firebase and i not sure whether got the send reaction feature or not. Cuz i not found any documentation realated to it, the only documentation that i found is this :

reactionPopupConfig: ReactionPopupConfiguration(
    backgroundColor: Colors.white,
    userReactionCallback: (message, emoji){
      // Your code goes here
    }
    padding: EdgeInsets.all(12),
    shadow: BoxShadow(
      color: Colors.black54,
      blurRadius: 20,
    ),
  ),

but the userReactionCallback still in the open issues case #261 right? So have any suggestion?
hope get reply soon! 🥺