应用: 抖音
任务: 进入抖音，查看消息，回复私信‘谢谢你的礼物’
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: CLICK
step_id: 4
action: CLICK