fix: follow relative and absolute links in SmoothScroll #11506
fix: follow relative and absolute links in SmoothScroll #11506

Closes https://github.com/zurb/foundation-sites/issues/11506

DaSchTour/foundation-sites,abdullahsalem/foundation-sites,abdullahsalem/foundation-sites,zurb/foundation,zurb/foundation,denisahac/foundation-sites,zurb/foundation-sites,denisahac/foundation-sites,DaSchTour/foundation-sites,denisahac/foundation-sites,abdullahsalem/foundation-sites,zurb/foundation-sites,zurb/foundation,zurb/foundation-sites