Introduce a new `Users` class to handle scheduled tasks for user status checks and batch processing. Refactor user approval functionality to allow silent operations and avoid sending notifications where unnecessary. Enhance user registration to prevent unfinished registrations from being processed in scheduled checks.
Updated the Action Scheduler implementation to improve flexibility and clarity. Replaced the 'enable_action_scheduler' option with 'enable_as_email_sending' for better specificity. Introduced hook-based checks to selectively enable email scheduling, ensuring compatibility and optimized performance.
* Sending email notifications directly (without Action Scheduler) on user delete action;
* Changed activation handler priority for integration with Action Scheduler
* Added 'fetch_user_id' argument for fetching the necessary user before email sending when Action Scheduler is active.
Mykyta Synelnikov