feat: #3254562 Add drustack/Leaflet.SyncView Support

Hoi Sing Edison Wongrequested to merge
issue/leaflet-3254562:3254562-add-drustackleaflet.syncview-support-10.4.x into 10.4.x

By: hswong3i By: itamair

Signed-off-by: Wong Hoi Sing Edison hswong3i@pantarei-design.com

Closes #3254562

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