message: include button clicks from attachments in dialogs
diff: @@ -525,9 +525,9 @@ export class SlackAdapter extends BotAdapter {
  text: null
  };
  - // If this is a message originating from a block_action, we'll mark it as a message
  + // If this is a message originating from a block_action or button click, we'll mark it as a message
  // so it gets processed in BotkitConversations
  - if (event.type === 'block_actions' && event.actions) {
  + if ((event.type === 'block_actions' || event.type == 'interactive_message') && event.actions) {
  activity.type = ActivityTypes.Message;
  activity.text = event.actions[0].value;
  }
  