Allow blocking of individual threats when "allow all threats" is active

[JuanMenendezBuitrago]

When "allow all threats" option is active, the user has no way to change the status of individual threats when the list is expanded. We should enable changing the status of individual threats from now.

[marcosmenendez]

If a user turns off again the "allow all threats" for a domain, then individual threats changes will be lost, and set as they were at the beginning