Unified Extensibility APIs in WordPress 6.6

[vikrampm1]

WordPress 6.6 unified the different slots and extensibility APIs between the post and site editors.

Please check the extension and validate the following along with the version bump #304

• [ ] Check if the plugin is integrating twice, once with wp.editPost and once using wp.editSite
• [ ] If yes, then update those to use wp.editor global variable (@wordpress/editor package or wp-editor script handle) as noted here https://make.wordpress.org/core/2024/06/18/editor-unified-extensibility-apis-in-6-6/

[gabriel-glo]

@vikrampm1

Same as before: https://github.com/10up/insecure-content-warning/issues/173#issuecomment-2250467376

This plugin only used @wordpress/edit-post to integrate plugin extension.