message: fix(locale-modal): add missing import
  ### Description
  `<dds-locale-modal>` renders several other components in shadow DOM, but those components were not declaraed as the dependencies. Fixed that problem.
  ### Changelog
  **New**
  Add missing imports in `<dds-locale-modal>`.
diff: @@ -13,6 +13,9 @@ import ddsSettings from '@carbon/ibmdotcom-utilities/es/utilities/settings/setti
  import ArrowLeft20 from 'carbon-web-components/es/icons/arrow--left/20';
  import EarthFilled20 from 'carbon-web-components/es/icons/earth--filled/20';
  import DDSModal from '../modal/modal';
  +import '../modal/modal-header';
  +import '../modal/modal-heading';
  +import '../modal/modal-close-button';
  import DDSLocaleSearch from './locale-search';
  import DDSRegionItem from './region-item';
  import styles from './locale-modal.scss';
  