#### What type of PR is this?
/area ui
/kind cleanup
/milestone 2.16.x
#### What this PR does / why we need it:
规范 api client 的方法名,之前生成的 api client 的方法名没有完全遵循驼峰命名。
#### Which issue(s) this PR fixes:
Close https://github.com/halo-dev/halo/issues/5716
#### Special notes for your reviewer:
CI 通过即可。
#### Does this PR introduce a user-facing change?
```release-note
None
```