WPBakery Page Builder for WordPress (Visual Composer) 8.3.1

- New: prettyPhoto removed and Lightbox2 added to the plugin (prettyPhoto will stay for backward compatibility)
- New: Call to Action element allows to align titles and select tags
- New: FlexSlider updated to 2.7.2 version and RTL support improved in WooCommerce products
- Update: $post variable added to the grid items filter ‘vc_gitem_post_data_get_link_real_title’
- Update: Catalan translation added
- Fix: Frontend editor initialization works properly
- Fix: Drag and drop for section element works properly in the backend editor
- Fix: WPBakery button in the Gutenberg editor works properly
- Fix: Request element parameters are passed properly in the edit form

- Update: Compatibility with WordPress 5.6
- Update: Compatibility with PHP8
- Fix: Template saving works properly
- Fix: Super admin editor access in multisite works properly
- Fix: setPost() method do_action_ref_array passes arguments correctly
- Fix: Modify with selected grid template loads properly
- Fix: Edit with WPBakery in Gutenberg control appears correctly
- Fix: Edit form loading spinner displayed correctly

- Fix: WooCommerce 4.7 compatibility issues resolved