[NodeBundle] OnClick event on delete-page-modal button throws error in browser console

[jeroenleijten]

Clicking the button with data-target="#delete-page-modal" to delete a node causes the following error in the browser console:
Uncaught ReferenceError: isEdited is not defined at HTMLButtonElement.onclick.

This does not hinder the ability to actually remove a node, it's still possible to click the delete button inside the modal without issue.