function createReportStylesTemplateEl() {
  const reportStylesTmplEl = window.document.createElement('template');
  reportStylesTmplEl.id = 'styles';
  const reportStyleslEl = window.document.createElement('style');
  reportStyleslEl.textContent = fs.readFileSync(`${LH_ROOT}/report/assets/styles.css`, 'utf-8');
  reportStylesTmplEl.content.append(reportStyleslEl);
  return reportStylesTmplEl;
}
@param {DOM} dom
@param {ComponentName} componentName
@return {DocumentFragment}