move scrollToTop to site.js so that other page can run back to top
move scrollToTop to site.js so that other page can run back to top

mwongac/teamform-seed,christietse/teamform-seed,eric-yhy/teamform-seed,christietse/teamform-seed,cindyngng/teamform-seed,mwongac/teamform-seed,eric-yhy/teamform-seed,cindyngng/teamform-seed,keungbryan/teamform-seed,keungbryan/teamform-seed