Revert visibility change

* Revert visibility change as we are using display: none instead and do
  not want element to impact page layout using component scoped CSS has
  been fully applied.

Author: puckowski

dist_sling/sling.es5.js

@@ -487,7 +487,7 @@ var l = function l(_ref3) {
       }
     }
     var r;
-    if (e && e.slStyle && (r = t.style.display, t.style.display = "hidden"), e && e.view) {
+    if (e && e.slStyle && (r = t.style.display, t.style.display = "none"), e && e.view) {
       var _n16 = d(e, !1, !1, !1, t);
       e = _n16.view;
       var _r6 = Object.getPrototypeOf(_n16.model);

dist_sling/sling.min.es5.js

@@ -782,7 +782,7 @@ const diffVDom = (vOldNode, vNewNode, viewModel = null) => {
 
     if (vNewNode && vNewNode.slStyle) {
         oldDisplay = vOldNode.style.display;
-        vOldNode.style.display = 'hidden';
+        vOldNode.style.display = 'none';
     }
 
     if (vNewNode && vNewNode.view) {