Youtube uses /shorts/ for their shorts video. The /embed url works with these id's, the regex did not support them though.
This updates the videoId regex to also support the /shorts/ urls.
* Fixed allowFullscreen not working correctly. Added autoplay and progress bar color parameters
* Added cc language preference, cc load policy, disable keyboard controls, end time and interface language parameters
* Added enable IFrame API, iv load policy, loop, modest branding, origin and playlist parameters
* Updated the youtube extension documentation
Co-authored-by: luis.feliu <luis.feliu@mentormate.com>