Help Newbie : Strapi Admin Page Translation

I am a beginner developer. I have set up my app.js as described on this page and added the translation files, but the translations are not being applied. :sob: Please help me.

my code:

import koTranslations from './extensions/translations/ko.json';

const config = {
  locales: [
    // 'ar',
    // 'fr',
    // 'cs',
    // 'de',
    // 'dk',
    // 'es',
    // 'he',
    // 'id',
    // 'it',
    // 'ja',
    'ko',
    'ko-KR'
    // 'ms',
    // 'nl',
    // 'no',
    // 'pl',
    // 'pt-BR',
    // 'pt',
    // 'ru',
    // 'sk',
    // 'sv',
    // 'th',
    // 'tr',
    // 'uk',
    // 'vi',
    // 'zh-Hans',
    // 'zh',
  ],
  translations: {
    'ko': koTranslations,
    'ko-KR' : koTranslations,
  },
};

const bootstrap = (app) => {
  console.log(app);
};

export default {
  config,
  bootstrap,
};

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