static get pluginName () {
    return 'pip'
  }
@description picture-in-picture plugin
@doc https://www.w3.org/TR/picture-in-picture/
@doc https://developer.apple.com/documentation/webkitjs/adding_picture_in_picture_to_your_safari_media_controls
@doc https://wicg.github.io/document-picture-in-picture/