message: Hides social share if link is private
diff: a.js-copy-url
  | Copy link
  - if channel.status === 'private' && !!channel.share_link
  + if channel.status === 'private'
  a.js-disable-public-link
  | Disable public link
  + unless channel.status === 'private'
  a.js-share-external(
  data-service='Twitter'
  href="https://twitter.com/intent/tweet?original_referer=#{url}&text=#{text}&url=#{url}&via=aredotna"
  