message: Use PF Title comp in popover
diff: import * as React from 'react';
  -import { FocusTrap } from '@patternfly/react-core';
  +import { FocusTrap, TitleSizes, Title } from '@patternfly/react-core';
  import { PopoverArrow } from '@patternfly/react-core/dist/js/components/Popover/PopoverArrow';
  import { PopoverBody } from '@patternfly/react-core/dist/js/components/Popover/PopoverBody';
  import { PopoverCloseButton } from '@patternfly/react-core/dist/js/components/Popover/PopoverCloseButton';
  import { PopoverContent } from '@patternfly/react-core/dist/js/components/Popover/PopoverContent';
  import { PopoverFooter } from '@patternfly/react-core/dist/js/components/Popover/PopoverFooter';
  -import { PopoverHeader } from '@patternfly/react-core/dist/js/components/Popover/PopoverHeader';
  import { css } from '@patternfly/react-styles';
  import styles from '@patternfly/react-styles/css/components/Popover/popover';
  import { useTranslation } from 'react-i18next';
  @@ -56,7 +55,9 @@ const Popover: React.FC<PopoverProps> = ({
  <PopoverContent>
  <PopoverCloseButton onClose={onClose} aria-label={t('console-shared~Close')} />
  {headerContent && (
  - <PopoverHeader id={`popover-${uniqueId}-header`}>{headerContent}</PopoverHeader>
  + <Title headingLevel="h6" size={TitleSizes.md} id={`popover-${uniqueId}-header`}>
  + {headerContent}
  + </Title>
  )}
  <PopoverBody id={`popover-${uniqueId}-body`}>{children}</PopoverBody>
  {footerContent && (
  