use native DOM instead of jQuery

Author: locks

app/components/crate-readme.js

@@ -2,18 +2,12 @@ import Component from '@ember/component';
 
 export default Component.extend({
   rendered: '',
+
   didRender() {
     this._super(...arguments);
-    this.$('pre > code').each(function() {
-      window.Prism.highlightElement(this);
-    });
-    this.scrollToFragment();
-  },
 
-  scrollToFragment() {
-    if (location.hash) {
-      let anchor_id = location.hash.substr(1);
-      document.getElementById(anchor_id).scrollIntoView();
-    }
+    this.element.querySelectorAll('pre > code').forEach(function(node) {
+      window.Prism.highlightElement(node);
+    });
   },
 });