Barn2 Media - Password Protected Categories 2.1.23

* Fix: Document Library Pro - Download button not inheriting protection from parent category when the child category is public.

* Tweak: Document Library Pro - show or hide the multi-select checkboxes depending on document protection.
* Fix: Document Library Pro - preview and download button visible when document is assigned to multiple categories where at least one is public.
* Fix: Document Library Pro - no buttons visible on documents when no categories assigned.
* Fix: PHP 8.2 Deprecation notice.
* Dev: Tested up to WP 6.5

2.1.18