[Improve][Manager] Optimize the objects returned by manager web paging queries

[leosanqing]

Description

1. The pageInfo object returned by the web contains too many unnecessary and unused fields
2. The client should not contain the PageHelper dependency

InLong Component

InLong Manager

Are you willing to submit PR?

• [X] Yes, I am willing to submit a PR!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct