message: Rename languagetoUse
diff: @@ -71,7 +71,7 @@ const SUPPORTED_LANGUAGES: {[key: string]: {id: string, dir: string}} = {
  'zh-TW': {id: 'zh-TW', dir: 'ltr'},
  };
  -function languageToUse(): i18n.LanguageCode {
  +function getLanguageToUse(): i18n.LanguageCode {
  const supportedLanguages = i18n.languageList(Object.keys(SUPPORTED_LANGUAGES));
  const defaultLanguage = new i18n.LanguageCode('en');
  const userLanguages = i18n.getBrowserLanguages();
  @@ -104,7 +104,7 @@ document.addEventListener('WebComponentsReady', () => {
  };
  // Create and start the app.
  - const language = languageToUse();
  + const language = getLanguageToUse();
  const languageDirection = SUPPORTED_LANGUAGES[language.string()].dir;
  document.documentElement.setAttribute('dir', languageDirection);
  const appRootEl = document.createElement('app-root');
  