Use IntersectionObserver to update map on entering viewport to fix visibility issue

So as mentioned on 🐛 Geofield Map Widget visibility issue inside field group, with Leaflet library Fixed as we know it's Leaflet we can use invalidateSize() here and just update the map https://git.drupalcode.org/project/leaflet/-/merge_requests/27/diffs

Thanks a lot @ekes ... I positively tested and reviewed your fix and deployed a new Leaflet 10.0.9 release → with it.

Automatically closed - issue fixed for 2 weeks with no activity.