fe_supplier_frontend/src/locales/en-US.ts

import userQuestion from './en-US/userQuestion';
import register from './en-US/register';
import login from './en-US/login';
import helpCenter from './en-US/helpCenter';
import friendLink from './en-US/friendLink';
import about from './en-US/about';
import common from './en-US/common';

export default {
  ...common,
  ...userQuestion,
  ...register,
  ...login,
  ...helpCenter,
  ...friendLink,
  ...about,
};