#### What type of PR is this?
/area ui
/kind improvement
/milestone 2.17.x
#### What this PR does / why we need it:
简化插件启动的接口，改为之前单独提供的修改插件状态的接口，而不是修改 `spec.enabled`。
#### Special notes for your reviewer:
需要测试：
1. 手动安装插件之后，启动插件。
#### Does this PR introduce a user-facing change?
```release-note
None
```
#### What type of PR is this?
/kind improvement
/area core
/area plugin
#### What this PR does / why we need it:
This PR wholly refactors plugin reconciliation to implement dependency mechanism.
Currently,
- If we disable plugin which has dependents, the plugin must wait for dependents to be disabled.
- If we enable plugin which has dependencies , the plugin must wait for dependencies to be enabled.
- If we upgrade plugin which has dependents, the plugin must request dependents to be unloaded. After the plugin is unloaded, the plugin must cancel unload request for dependents.
#### Which issue(s) this PR fixes:
Fixes#5872
#### Special notes for your reviewer:
#### Does this PR introduce a user-facing change?
```release-note
优化被依赖的插件的升级，启用和禁用
```
#### 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
```
#### What type of PR is this?
/area ui
/kind bug
/milestone 2.15.0
#### What this PR does / why we need it:
修复插件异常启动时，指示器显示不正确的问题。
Fixes https://github.com/halo-dev/halo/pull/5520
#### Does this PR introduce a user-facing change?
```release-note
None
```
Ryan Wang