W3 Total Cache Pro 2.8.8

* Feature: Performance Dashboard update
* Feature: Remove unused CSS/JS
* Fix: Nginx feature and permission policy header syntax
* Fix: Memcache install check
* Fix: Cloudfront purge button
* Fix: Uncaught type error on the install page
* Fix: Page mapping data
* Fix: Add missing id for a save settings button
* Fix: Extension counts
* Fix: PHP 8.2 deprecation warnings for dynamic class property assignments
* Fix: Do not autoload WP option for PageSpeed data
* Fix: Cache groups: Fix spacing in values for htaccess syntax
* Fix: Refactor Minify cache key mapping to have shorter keys and separate storage
* Fix: Minify statistics output and PHP warnings
* Fix: Feature Showcase: New feature version numbers
* Fix: Lazy Loading URL pattern match
* Update: Upgrade modal/popup
* Update: Added "Learn more" links

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* Feature: Added Delay Scripts (Pro)
* Fix: Several PHP 8 warnings
* Fix: Fragment Cache extension PHP warnings when no engine was selected
* Fix: Fragment Cache engine selection disabled for pro license under certain conditions
* Fix: Added Database Cluster compatiblity for older db.php files
* Fix: Fixed one PageSpeed tool metric not outputting data and adjusted a few labels
* Fix: Multiple anchor links for PageSpeed block on General Settings page
* Fix: Cache Groups validation on save
* Fix: Cache Groups delete button not working for added groups
* Update: Renamed Image Service feature to WebP Converter
* Update: Added WebP Converter block to General Settings page along with link to navigation bar
* Update: StackPath CDN prices (Service ending November 22, 2023 and will be replaced by Bunny CDN in future update)