Convert Pro 1.7.8

- Improvement: Added compatibility with PHP Version 8.1.
- Improvement: Added an action hook on successful form submission.

- Improvement: Added WPML integration using wpml-config.xml file.
- Fix: Rollback popup displayed on WP Forms page.
- Fix: Fatal error Class WP_Block_Parser not found.
- Fix: Not able to resize the image more than 700px in customizer.
- Fix: Select dropdown content not showing properly.
- Fix: Rollback button UI.

- New: Added Rollback version functionality.