[JENKINS-70564] Replay page broken after the Ace editor update

Author: basil

plugin/src/main/js/workflow-editor.js

@@ -9,13 +9,15 @@ import { addSamplesWidget } from './samples';
 import ace from "ace-builds/src-noconflict/ace";
 import "ace-builds/src-noconflict/ext-language_tools";
 import "ace-builds/src-noconflict/mode-groovy";
+import "ace-builds/src-noconflict/snippets/javascript";
 import "ace-builds/src-noconflict/theme-tomorrow";
 
 // Import custom snippets
 import "./snippets/workflow";
 
 var editorIdCounter = 0;
 
+document.addEventListener("DOMContentLoaded", function() {
         $('.workflow-editor-wrapper').each(function() {
             initEditor($(this));
         });
@@ -128,3 +130,4 @@ var editorIdCounter = 0;
             wrapper.show();
             textarea.hide();
         }
+});