Add controlSize feature

[paodb]

This comes from directory:

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Is there a way to set the controls size? Here is a SO answer on how it can be set.

https://stackoverflow.com/a/68389696/1490322

I notice that the controls buttons look a bit big by default. Thanks

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[paodb]

From the oficial documentation, a controlSize property can be added to achieve this:

https://developers.google.com/maps/documentation/javascript/reference/map#MapOptions.controlSize

[paodb]

This depends on adding the property on the web-component first. See https://github.com/FlowingCode/google-map/issues/17.