Function getZoomTargetForNodePositions

getZoomTargetForNodePositions(
    nodePositions: Point[],
    containerWidth: number,
    containerHeight: number,
    maxNodeRadius?: number,
): { panX: number; panY: number; zoom: number }
Gets the zoom target to fit the given node positions into the scene.
Parameters
- nodePositions: Point[]
  The node positions.
- containerWidth: number
  The width of the container NVL is displayed in.
- containerHeight: number
  The height of the container NVL is displayed in.
- maxNodeRadius: number = ...
  The maximum node radius, used to pad the scene (defaults to 50).
Returns { panX: number; panY: number; zoom: number }
The zoom and pan targets.
- panX: number
  
  The x-coordinate of the pan.
- panY: number
  
  The y-coordinate of the pan.
- zoom: number
  
  The zoom level.