应用: 抖音
任务: 打开抖音，搜索“宠物训练”，收藏第五个视频
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: TYPE
type_text: 宠物训练
step_id: 3
action: CLICK
step_id: 4
action: SWIPE