support custom language packs

src/locales/index.ts

@@ -3,11 +3,11 @@ import zh_CN from "./zh_CN";
 import en_US from './en_US';
 
 const i18n = createI18n({
-  locale: 'en_US', // set locale
+  locale: 'en_US',
   messages: {
     zh_CN: zh_CN,
     en_US: en_US,
   },
 })
 
-export default i18n
+export default i18n;