Description

This PR adds support for mapId. By default mapId works by adding to the options prop, but we get a warning in the console. This resolves said warning by removing the styles property from the maps option.

I've updated the type defs in the DefinitelyTyped repo as well (PR here)

A Map's styles property cannot be set when a mapId is present.  When a mapId is present Map styles are controlled via the cloud console. Please see documentation at https://developers.google.com/maps/documentation/javascript/styling#cloud_tooling

closes #1070