When drawing or editing an area, snap it to other areas #55
Description
When you draw an area and create a point(vertex) close to a line/vertex of another area, it should snap to that line/vertex of the other shape. This is so we don't end up with a bunch of minor buffers of 1-3 meters between areas.
The same snapping should happen when you edit the area by dragging a vertex.
The snapping should not happening when moving the entire shape.
This is possible with the geoman.io library. https://geoman.io/docs/leaflet/options/snapping
Experiment with the snapping distance. 2m sounds like a good number in theory.