PowerPack for Beaver Builder 2.39.2

* Fix: Advanced Menu - Accordion toggle issue on responsive breakpoint

* Enhancement: Content Grid - Added "Slug" as order by option
* Enhancement: Testimonials - Added an option to disable the mouse drag for slider
* Fix: Advanced Menu - Toggle arrows getting mixed up with text in horizontal layout with center alignment
* Fix: Advanced Menu - Keyboard navigation issue
* Fix: Gravity Forms Styler - Couple of error related styling fields were not working for GF 2.5 and above
* Fix: Modal Box - iframe loading issue on page load in some cases
* Fix: Logos Grid - Spacing issue on medium breakpoint
* Fix: Image Carousel - Autplay Speed field left emptied causes JS error
* Fix: Header/Footer - Header background color getting transparent in builder due to overlay setting

* Enhancement: Video - Added an option to provide a value for HTML title attribute for iframe and video tag
* Enhancement: Image Carousel - Added options to add custom screen reader text for previous and next nav arrows
* Enhancement: Advanced Accordion - ACF Repeater - Added logic to convert URL to clickable link returned from ACF file field used for accordion item content
* Fix: Modal Box - Popup was getting closed automatically in some cases
* Fix: Testimonials - Spacing was not working in grid layout when the column is set to 1
* Fix: Content Grid - Layout issue when used in Advanced Accordion module
* Fix: Advanced Accordion - Automatic page scroll issue