PublishPress Authors Pro 4.7.1

* Fixed: Fix query for author posts doesn't work if instead of the author name we have the author ID or term ID, #487;
* Fixed: Fix reduced font size for the author description, #435;
* Fixed: Fix error message when post is not found, showing warning about "post_author" and "post_type" on null, #495;
* Fixed: Fix Yoast SEO structured data schema, #472;
* Fixed: Fix the selection of fallback user for guest authors in the posts bulk edit form, #497;
* Fixed: Fix PHP warnings for the shortcode "authors_list", used in the Pro plugin, #498;
* Fixed: Add "author" taxonomy to Polylang, #18;

* Fixed: Fix author profiles that are automatically created for users that are not on the selected user roles, #464;
* Fixed: Fix authors not created when registered from the frontend for the selected user roles, #420;
* Fixed: Fix guest authors compatibility with YoastSEO archive pages and the "robots" tag, #471;
* Fixed: Fix PHP notice: Trying to get property 'name' of non-object in Utils.php, #485;
* Fixed: Fix PHP notice: Trying to access array offset on value of type bool in class-wp-list-util.php, #486;

* Fixed: Add class "bypostauthor" for secondary authors on comments, #154;
* Fixed: Fixed the author byline on 3rd party themes in the front-end, #473;
* Added: Added CSS class with the author slug to each author in the default layouts;