Popover missing other supported placement options

https://design.gitlab.com/components/popover

Twelve options are available for positioning: top, topleft, topright, right, righttop, rightbottom, bottom, bottomleft, bottomright, left, lefttop, and leftbottom aligned. Positioning is relative to the trigger element.

We currently only support 4 > https://gitlab.com/gitlab-org/gitlab-services/design.gitlab.com/-/blob/main/packages/gitlab-ui/src/utils/constants.js#L238-243

export const popoverPlacements = {
  top: 'top',
  right: 'right',
  bottom: 'bottom',
  left: 'left',
};

Can we add support for the other 8?