fix: don't use jquery to load EditorJS

cubicweb_editorjs/data/cubes.editorjs.js

@@ -25,6 +25,6 @@
 }
 
 function initEditorjs() {
-  jQuery("textarea").each((_index, node) => {
+  Array.from(document.getElementsByTagName("textarea")).forEach((node, index) => {
     if (node.getAttribute("cubicweb:type") == "editorjs") {
       const editor = document.createElement("div");
@@ -29,6 +29,6 @@
     if (node.getAttribute("cubicweb:type") == "editorjs") {
       const editor = document.createElement("div");
-      $(node).hide();
+      node.style.display = "none";
       node.parentNode.appendChild(editor);
       const editorJsConfig = {
         /**
@@ -68,7 +68,7 @@
     }
   });
 }
-jQuery(document).ready(() =>
+window.addEventListener("DOMContentLoaded", () => {
   loadScript(
     "https://cdn.jsdelivr.net/npm/@editorjs/editorjs@latest"
   ).then(() =>
@@ -78,4 +78,5 @@
       )
     ).then(initEditorjs)
   )
+}
 );