i18n for conventionalcommit.json

[LinWanCen]

use "conventionalcommit_${Locale.getDefault().toLanguageTag()}.json" when file exist?

https://github.com/lppedd/idea-conventional-commit/blob/d524acc6f92057371bede6e951c2a554fb0a59a3/src/main/kotlin/com/github/lppedd/cc/CC.kt#L23-L26

conventionalcommit_zh_CN.json

{
  "types": {
    "refactor": {
      "description": "既无错误修复也未添加功能的更改"
    }
}

[BunnySakura]

中文翻译可参考#135