src/vs/base/browser/ui/grid/gridview.ts/BranchNode/edgeSnapping
class BranchNode:	set edgeSnapping(edgeSnapping: boolean) {
		if (this._edgeSnapping === edgeSnapping) {
			return;
		}

		this._edgeSnapping = edgeSnapping;

		for (const child of this.children) {
			if (child instanceof BranchNode) {
				child.edgeSnapping = edgeSnapping;
			}
		}

		this.updateSplitviewEdgeSnappingEnablement();
	}