v3.6.4

• Remove unnecessary calc from media query (thanks @naomiaz)
• Enhance types (thanks @lunika)
• Fix: Object.values for the providers must be used (thanks @syteknet-core)
• Fix: Improve support inside iframes (thanks @ajgagnon)
• Added --plyr-video-background for having control over the background of a video with alpha channel (webm) or a poster image with alpha channel (thanks @nepomuc)
• Fix issue with not entering iosfullscreen of vimeo videos with playsinline=true (thanks @lordon and @Frosch)
• fix: use new syntax for iframe allow attribute
• chore: package updates
• chore: add @babel/plugin-proposal-class-properties
• fix: use bound arrow functions in classes