Provide a way to set map id.

[TikYengibaryan]

Is your feature request related to a problem? Please describe 🙏
I've some default styling in my GCP and want to access it with mapId. I can do it with pure js and GCP API, but can't realize it with google-map-react, google-map-react doesn't provide a way to do so.
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Describe the solution you'd like 🤔
I would like to give mapId in options property.
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[benjamincurrie]

Also looking at adding themes to maps, would definitely appreciate the ability to set mapId in order to do this.

[jakeFeldman]

You can add mapId to the options prop. If using typescript it's not defined in the types package and there is a warning in the console since mapId should not be used in conjunction with styles, but the map renders correctly. I've added a PR in this repo to remove the styles object and another PR in the typed repo to support the key on the MapOptions type

Hope that helps.

GoogleMapReact: #1086
TypeDefs: DefinitelyTyped/DefinitelyTyped#58072