fix: resolve TypeScript errors in frontend build

node_modules/@tiptap/extension-document/dist/index.d.ts

@@ -0,0 +1,9 @@
+import { Node } from '@tiptap/core';
+
+/**
+ * The default document node which represents the top level node of the editor.
+ * @see https://tiptap.dev/api/nodes/document
+ */
+declare const Document: Node<any, any>;
+
+export { Document, Document as default };