Add ability to block AI domains with AI List

Hello NextDNS

With the advent of AI being in almost everything, I think we need a way to bulk block AI specific domains such as OpenAI and DeepSeek, this would mean tools that come with AI and reach out to a service won't work.

I am trying to avoid all this AI garbage that big tech are shoehorning into everything and would prefer to tick a box rather than keep updating my own list.