perf: factorize XY grid responsive modifiers
perf: factorize XY grid responsive modifiers

See diff at https://www.diffchecker.com/NWHV8CRG

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