WPMU DEV - Hummingbird 3.10

- Fix: Minify module generating CSS file with HTML inside, when source CSS file not found

New: Generate Critical CSS for your pages to address render-blocking resource warnings and eliminate unused CSS
Improvement: Add comments for all translation strings that have placeholders in them
Improvement: Set minimum required PHP version to 7.4
Fix: PHP errors and warnings
Fix: Asset Optimization doesn't save settings on Manual Mode
Fix: Delay JS conflict with Hub Client

New: Delay JS - Delay the execution of scripts to prioritize page rendering
Improvement: PHP 8.2 Compatibility
Fix: Accessibility Improvements
Fix: Security audit and improvements
Fix: Filter panel overlaps result while scrolling down on Asset Optimization page
Fix: Asset Optimization doesn't save manual settings in some situations
Fix: Minor improvements in code and copy