[INLONG-5290][Manager] Optimize the objects returned by manager web paging queries

[leosanqing]

Prepare a Pull Request

• Fixes #5290

Motivation

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

Modifications

• Modules: Client,Web(Controller)

Verifying this change

(Please pick either of the following options)

• [x] This change is already covered by existing tests, such as:
  • PageResultTest

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)
• If a feature is not applicable for documentation, explain why?
• If a feature is not documented yet in this PR, please create a follow-up issue for adding the documentation