add support for Max based on HBO Max setup

[dan-riley]

Do these changes actually work? Don't want to waste time trying to compile it if not. I tried changing all of the url's to max.com in the unpacked install, but it didn't work. Quick look at this commit looks like that's all it does too essentially, but I might be missing something.

[MrMamen]

Can someone in a region where Max is available test and verify this?

[s-crypt]

Idk if I am doing something wrong, but I cannot get the Max toggle to turn on

[jarrodsmeyers]

Even after fixing the toggle on the options page, this does not work