WPMU DEV - Hummingbird 3.10

- New: Import/export of asset optimization settings on network subsites
- Enhance: Page caching warnings and errors
- Enhance: Compatibility with PHP 8.1
- Fix: PHP warning in Asset Optimization module
- Fix: Error with [object Object] in Gzip module
- Fix: Page cache status when disabling the plugin on the network
- Fix: Preload key requests audit in performance test
- Fix: Performance scans not always starting in Firefox
- Fix: Cloudflare integration not detecting mapped domains on subsites
- Fix: Cloudflare modal not properly closing
- Fix: Overlapping tooltips on Asset optimization page

- New: Asset optimization preload option
- New: Asset optimization async option for external assets
- New: Add prefix to Redis cache via the WP_REDIS_SALT define (possible to store cache for multiple sites in a single database)
- New: DNS prefetch for asset optimization CDN
- New: Filter relevant audits in the performance test
- New: Connect to Cloudflare via API token
- Enhance: Allow setting crossorigin attribute for preconnect resources
- Enhance: Performance test score metrics weights (inline with latest Lighthouse changes)
- Enhance: Performance test tooltips
- Enhance: Make sure logging is active only when both WP_DEBUG and WP_DEBUG_LOG are set
- Enhance: Set the cache by device type option in Cloudflare APO for new installs
- Enhance: White labeling support
- Enhance: Processing of configs from other plugins
- Fix: Do not preconnect to Google fonts servers if no fonts are being optimized
- Fix: Broken purchase link in Cloudflare APO integration
- Fix: Page cache module not always showing on subsites
- Fix: Redis not connecting to external servers via hostname
- Fix: PHP warnings for undefined index original_size
- Fix: PHP warnings when doing performance scans from Dashboard
- Fix: PHP warnings array_filter() expects parameter 1 to be array
- Fix: Saving/applying settings via configs for Page Caching module on network installs

New: Configs
New: Define for controlling Redis exclusion groups
New: Allow adding admin bar shortcuts for purging various caches
Enhance: Move admin bar cache controls settings to the Settings - General page
Enhance: Performance test informative audits UI
Fix: Dashboard and Gzip compression module layout issues on mobile devices
Fix: White pages when page cache is removed without header files
Fix: Asset optimization empty debug link on subsites
Fix: Documentation links
Fix: Skip performance test button styles
Fix: Skipping performance tests on subsites