markerUrl method
Builds a universal link (HTTPS) for showing a marker.
Returns null if not supported.
Implementation
@override
String markerUrl(LocationCoords coords, {int? zoom}) => buildUrl(
url: 'https://www.google.com/maps/search/',
queryParams: {
'api': '1',
'query': coords.latlng,
if (zoom != null) 'z': zoom.toString(),
},
);