Revert "fix: shimmer has the potential to cover images (#1100)"

This reverts commit 74ab6f8adc.

_javascript/modules/components/img-lazyload.js

@@ -6,4 +6,10 @@ export function imgLazy() {
   if ($('#core-wrapper img[data-src]') <= 0) {
     return;
   }
+
+  /* Stop shimmer when image loaded */
+  document.addEventListener('lazyloaded', function (e) {
+    const $img = $(e.target);
+    $img.parent().removeClass('shimmer');
+  });
 }

_sass/addon/commons.scss

@@ -91,7 +91,6 @@ img {
       &.lazyloaded {
         -webkit-animation: fade-in 0.35s ease-in;
         animation: fade-in 0.35s ease-in;
-        z-index: 0;
       }
     }