[fixes#73406672]only allow one active toggleable control at a time
[fixes#72964300] set the base font as Verdana 14pt for ARC branding
[fixes#71415256] remove sync between outbound date and return date from front-end
[#73417956] add a function to check if street view is available at a location based on google maps v3 api; this function is not called for the moment, will be functional when alert text localization solution is clear