#### What type of PR is this?
/area ui
/kind improvement
/milestone 2.19.0
#### What this PR does / why we need it:
将 H2 数据库使用警告放置在数据初始化页面,之前放在初始化表单页面无法正确判断,因为没有登录,无法调用 /actuator/info 接口获取数据库数据。
<img width="638" alt="image" src="https://github.com/user-attachments/assets/18868104-321a-4146-a893-5babf4573146">
Fixes https://github.com/halo-dev/halo/issues/6561
#### Special notes for your reviewer:
需要使用此 PR 测试使用 H2 数据库全新安装,观察是否在数据初始化页面有 H2 数据库的使用提示。
#### Does this PR introduce a user-facing change?
```release-note
None
```
#### What type of PR is this?
/area ui
/kind improvement
/milestone 2.17.x
#### What this PR does / why we need it:
重新组织和固定 UI 部分代码的 imports 导入,防止后续因为 imports 的顺序造成不必要的 diff。
基于:https://github.com/halo-dev/halo/pull/6151
#### Does this PR introduce a user-facing change?
```release-note
None
```
#### 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
```