fix: scroll search into view on iOS-devices (#417)

Previously, the search field on iOS devices was only visible in the
viewport once you started typing. Now, clicking the magnifying glass
scrolls directly to the search field.

Author: therobrob

assets/js/search.js

@@ -56,6 +56,7 @@ const initSearch = () => {
     search.classList.add("o-search--show");
     overlay.classList.add("overlay--show", "overlay--show-lv5");
     searchElement.focus();
+    search.scrollIntoView({ behavior: "smooth", block: "start" });
   }
 
   function showSearchOnStartPage() {