message: fix(bubbling function): add return value in bubbling
diff: @@ -20,7 +20,7 @@ export function bubbling(
  targetEvent = event.target
  }
  source.on(sourceEvent, function(...args: any[]) {
  - target.trigger(targetEvent, ...args)
  + return target.trigger(targetEvent, ...args)
  })
  })
  }
  