MapZoneManagerController constructor
      
      MapZoneManagerController({})
     
    
Initializes the MapZoneManagerController with optional parameters.
onZoneAdded is a callback triggered when a new zone is added.
minimumCoordinatesForAdding specifies the minimum number of coordinates required to add a zone.
multiZone determines if multiple zones can be added.
Implementation
MapZoneManagerController({
  this.onZoneAdded,
  this.minimumCoordinatesForAdding,
  this.multiZone,
});