message: feat(Popover): add duration prop
diff: @@ -32,6 +32,7 @@ const [name, bem] = createNamespace('popover');
  const popupProps = [
  'show',
  'overlay',
  + 'duration',
  'teleport',
  'overlayStyle',
  'overlayClass',
  @@ -68,6 +69,7 @@ export default defineComponent({
  props: {
  show: Boolean,
  overlay: Boolean,
  + duration: [Number, String],
  overlayClass: UnknownProp,
  overlayStyle: Object as PropType<CSSProperties>,
  offset: {
  