Consider introducing a third state (app not running, content blockers running)

@ameshkov

If the extension in the browser continues to work, why is the extension icon in pause mode?
I understand that the AdGuard app quit, why should that affect the status change of the extension in Safari if it continues to work and blocks ads.
It seems to me that changing the status of an extension in Safari, should not change to _pause_ if it continues to work and block ads?

Example:

But there are cases when the application is closed, but the extension works and the state indication is correct (does not go to pause mode).

https://user-images.githubusercontent.com/62497891/120711956-4b3d3700-c4c0-11eb-94a2-f4a731d8145f.mp4