[BUG] ChangeAdmonitionType plugin throws when it's included

[dave-db]

• I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
• I have read the documentation and cannot find an answer.

Describe the bug
Adding the ChangeAdmonition type plugin to the active plugin list throws TypeError: Cannot read properties of null (reading 'rootNode')

Reproduction
codesandbox

To Reproduce
Steps to reproduce the behavior:
Load the sandbox

Expected behavior
No error!

Desktop (please complete the following information):
MacOS, Chrome 119, mdx-editor 2.3.4

[petyosi]

The ChangeAdmonition component needs some specific setup to work as expected. See how it's setup in the KitchenSinkToolbar. https://github.com/mdx-editor/editor/blob/main/src/plugins/toolbar/components/KitchenSinkToolbar.tsx

This should be documented better of course. I would appreciate a PR, there's so much work in the details here.

[dave-db]

Grand, thank you. Let me see if I can help with a PR on this.