#### What type of PR is this?
/kind bug
/area console
#### What this PR does / why we need it:
修正 Console 构建的输出目录，此问题由 https://github.com/halo-dev/halo/pull/3552 导致。
#### Does this PR introduce a user-facing change?
```release-note
None
```
#### What type of PR is this?
/kind feature
#### What this PR does / why we need it:
为 Console 端添加多语言的支持，并默认提供简体中文和英文的语言包。
todolist:
- [x] 完善 Console 的文字语言包翻译。
- [ ] ~~为后端提供的部分数据支持翻译，比如系统设置的表单定义。（实现方式待讨论，这个 PR 先不支持）~~
- [x] 提供语言设置。
#### Which issue(s) this PR fixes:
Fixes#3346
#### Special notes for your reviewer:
测试方式：
1. 检查各个页面的文字显示是否正常。
2. 测试中英文环境中是否使用了对应的语言包。
#### Does this PR introduce a user-facing change?
```release-note
Console 端支持多语言界面
```
#### What type of PR is this?
/kind cleanup
/area core
#### What this PR does / why we need it:
This PR totally refactor project structure for a better plugin development. Now we can maintain and publish api and platform modules at Halo application side, which will be references by plugins.
Currently, we can execute command `./gradlew clean publish` to publish api and platform modules into **local** Maven repository, so that we can refer these dependencies (`run.halo.tools.platform:plugin:2.4.0-SNAPSHOT` and `run.halo.app:api:2.4.0-SNAPSHOT`) in plugin projects.
I will make another pull request to publish api library and platforms into Maven central repository.
**Modules explanation**:
- API module contains common classes which might be used by plugins.
- Plugin Platform module contains dependency declarations of other plugin API modules.
- Application Platform module contains dependency declarations application module might uses.
If we want to build application only(exclude check and jar), we have to execute the command below:
```bash
./gradlew clean :application:build -x :application:check -x :application:jar
```
The executable Jar will be generated at folder `application/build/libs/`.
If we want to build a Docker image, we could execute the command below:
```bash
docker build -t johnniang/halo:project-structure .
# Test the Docker image
docker run -it --rm -p8090:8090 johnniang/halo:project-structure
```
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/2730
#### Special notes for your reviewer:
#### Does this PR introduce a user-facing change?
```release-note
重构项目结构
```
Ryan Wang