using a hover.js for undestrap’s bootstrap_navwalker

if anyone wishes to use a hover script to enables mouseover effect on dropdown menus (such as the one found here) with understrap, please note that the script refers to e('[data-hover="dropdown"]').dropdownHover() to trigger the effect, but understrap’s nav walker does outputs only a data-toggle="dropdown" instead, hence you need to change that line into e('[data-toggle="dropdown"]').dropdownHover() to get it working