Zoom-Out 9-Photo Grid

<ZoomOutNinePhotosGrid
  images={nineImages}
  renderContent={() => <MyOverlay />}
/>

/* scroll length (default 200svh) */
--uk-zoom-out-distance: 200svh;
/* where the pane stops: by itself under a navbar that stays on screen
   (UkNavbar fixed / sticky), else 0. Override only for something else. */
--uk-zoom-out-top: 0px;