应用: 微信读书
任务: 打开微信读书，搜索“儿童绘本”，收藏第一本
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: TYPE
type_text: 儿童绘本
step_id: 3
action: CLICK
step_id: 4
action: CLICK
step_id: 5
action: CLICK
step_id: 6
action: STOP