auto detect video sites and check its status

[luc99hen]

This PR is based on the issue #4.

Changes:

• remove YT/Netflix logic
• auto detect video sites and track its status accordingly (This need an extra "all_urls" permission)

[Stigmatoz]

Hi, Luc.
These are very cool and useful changes. But I can't publish these changes to the chrome store, because it requires the "<all_urls>" permissions to be applied. A long time ago I made the same changes and then many people removed extensions because they are afraid theat the extension needs acceess to all sites.

[luc99hen]

Thank you for your reply.
Totally understand the concerns of privacy from this change😆.
Maybe we can create another branch from this change, in case someone else want this feature?

[Stigmatoz]

Yes, I made a new branch all-sites-video-tracking and approved pull request.