feat: add question bank management, quiz finalization, and related backend/frontend functionality

assets/controllers/bo/form_collection_controller.js

@@ -0,0 +1,21 @@
+import {Controller} from '@hotwired/stimulus';
+
+export default class extends Controller {
+  static targets = ['collection'];
+  static values = {prototype: String};
+
+  connect() {
+    this.index = this.collectionTarget.children.length;
+  }
+
+  addItem() {
+    const item = document.createElement('div');
+    item.innerHTML = this.prototypeValue.replace(/__name__/g, this.index);
+    this.collectionTarget.appendChild(item.firstElementChild);
+    this.index++;
+  }
+
+  removeItem(event) {
+    event.target.closest('[data-collection-item]').remove();
+  }
+}