Extensão de Testes de Regressão MainWP 5.2.0

* Fixed: Delayed scan scheduling and email notifications now only run when relevant snapshots and pages are available.
* Added: Configurable delay option for post-update HTML regression scans, allowing scans to be enabled or disabled and delayed from 1 to 60 minutes.
* Added: Per-page delayed scan scheduling with a new delayed-scan action for more flexible regression testing workflows.
* Updated: Email notifications can now include the triggering snapshot or page when that information is available.
* Updated: Added delay controls to the settings UI with value clamping to ensure saved delay settings remain within the supported range.
* Updated: Strengthened validation for site and page inputs and improved snapshot selection reliability.

* Fixed: Resolved an issue where the process could sporadically skip some sites instead of processing the full site list.
* Fixed: Fixed the default widget layout and sizing to display correctly on the regression testing dashboard.
* Updated: Updated dependency libraries to improve compatibility and maintain stability.