PublishPress Authors Pro 4.7.3

* 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;

* Changed: Invert position of Edit User and Edit Author Profile links in the term actions, #453;
* Fixed: Fix sanitization of the user_id before adding it to a query;
* Fixed: Fix compatibility with the search results on the plugin "Knowledge Base for Documents and FAQs" when an article is not found;
* Fixed: Fix compatibility with PublishPress' calendar create item form for the author field, to select guest or mapped to user authors;
* Fixed: Add compatibility with PublishPress' calendar to support multiple authors in the calendar form;
* Fixed: Fix the warning: Undefined array key "post" in multiple-authors.php file, when opening the General settings page, #459;