Update scroll-up.js

Author: heiskr

javascripts/scroll-up.js

@@ -2,7 +2,7 @@ export default function () {
   // function to scroll up to page top
   const PageTopBtn = document.getElementById('js-scroll-top')
   if (!PageTopBtn) return
-  
+
   PageTopBtn.addEventListener('click', (e) => {
     window.scrollTo({
       top: 0,