fix(google-maps): avoid inline host style that violates CSP style-src

[froy-clgx]

What

MapInfoWindow hides its host element with host: {'style': 'display: none'}. This renders as an inline style attribute on <map-info-window>, which is blocked by a Content Security Policy whose style-src doesn't include 'unsafe-inline'. The browser reports a violation like this for every info window on the page:

Applying inline style violates the following Content Security Policy directive 'style-src ...'

Fix

Remove the host style binding and set display: none on the host element in the constructor through CSSOM (element.style.display). CSP doesn't block CSSOM assignments, so the behavior is unchanged and the directive works under a strict style-src.

Testing

Verified in an app running a strict CSP (style-src without 'unsafe-inline'): before the change, each <map-info-window> raised a CSP violation; after it, none are raised, and the info windows still open and close normally.

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