Add more customer feedback in the domain list

[lucasRolff]

When you load the Professional Spam Filter addon in the cPanel interface (Paper lantern or x3), you get a list of domains, showing Domainname, Type and "Login".

I have a few suggestions for this:

• There's no feedback to the user which domains are protected, so it would be nice to add a "Protected" yes/no column (Use something like the $panel->isInFilter() function)
• Change Login to Activate or Login depending on if a domain is protected or not.
• Add the possibility to remove the plugin from the filter again (Change MX back to the original, and remove the domain from SpamExperts® cluster