【feat】优化公共步骤页面的打开速度

[caofengbin]

Whether this PR is eventually merged or not, Sonic will thank you very much for your contribution.

无论此PR最终是否合并，Sonic组织都非常感谢您的贡献。

Checklist

• The title starts with fix, fea, or doc. | 标题为fix、feat或doc开头。
• I have checked that there are no duplicate pull requests with this request. | 我已检查没有与此请求重复的拉取请求。
• I have considered and confirmed that this submission is valuable to others. | 我已经考虑过，并确认这份呈件对其他人很有价值。
• I accept that this submission may not be used. | 我接受此提交可能不会被使用。

Description

业务实际使用的过程中，发现公共步骤Page打开速度很慢，查看Ngnix日志经常会达到8秒以上

GET /server/api/controller/publicSteps/list?projectId=3&page=1&pageSize=15 HTTP/1.1" 200 "6.958" "74862"
GET /server/api/controller/publicSteps/list?projectId=3&page=2&pageSize=15 HTTP/1.1" 200 "9.158" "95470"
GET /server/api/controller/publicSteps/list?projectId=3&page=2&pageSize=15 HTTP/1.1" 200 "9.123" "95470"

排查耗时主要在拉取公共步骤列表的接口时，会遍历查询每个公共步骤的所有子步骤信息，并填充返回。

实际上子步骤的信息在列表展示时并不需要，这里优化为点击每个公共步骤的详情按钮时，再单独拉取子步骤信息，整体页面打开速度会明显提升。

[ZhouYixun]

mg