Info window example in the docs results in bug when attempting to open the same window consecutively

[johnwesely]

Describe the bug The example provided in the docs for info windows results in a bug that does not allow opening the same info window consecutively. The stackblitz example linked is correct and does not feature this bug. the @closeclick event must present on both the 'GMapInfoWindow' and the 'GMapMarker' to not cause this bug.