Add Notes as an "element to copy" option

Is your feature request related to a problem? Please describe.

WordPress 6.9 introduces a new feature, Notes, which allows users to leave block-level comments when editing content.

Under the hood, notes are just WP_Comments with the comment_type of note. The post association is made through the comment_post_ID field in each WP_Comment object/database, and a note is associated with a block through block-level metadata.

<!-- wp:paragraph {"metadata":{"noteId":3}} -->
<p>This is some text about the walk I took at the reservoir. </p>
<!-- /wp:paragraph -->

Note (pun intended): After cloning a post, the notes are not shown because of the comment_post_ID pointing to the old one, even though the block-level metadata remains. I've opened #420 for this "bug".

In some cases the user may want the conversations that happened within Notes to also be copied so that they can continue separate from the original post.

Describe the solution you'd like

On the Settings page, there should be an option to also include Notes. There is currently an option to include Comments, but this does not copy Notes because they are explicitly excluded from all areas of Core unless comment_type is explicitly set to all or note.

Why do you think this feature is something we should consider for the Yoast SEO plugins?

This plugin is specifically for cloning posts.

Additional context

Start at the Settings page and trace the existing option to include Comments, then follow the post-cloning path that handles comment types and block metadata. Done means users can opt to copy Notes with a cloned post while keeping the copied conversations associated with the new post rather than the original.