Fix cookie validation error

[VariableVixen]

Closes #259 by changing cookie validation to check all cookies, instead of only cookies from https://patreon.com/. This should be future-proof as well, in the event that Patreon further changes their cookies to use other domains.

This PR is intended to provide an easy, low-effort way to implement a fix for Patreon's recent breaking change, and will be closed should the issue be otherwise resolved.

[AlexCSDev]

The issue with this implementation is that it is pretty fragile. If, for some reason, something breaks in puppeteer and it starts returning cookies not limited to the current page it will be pretty hard to figure out what goes wrong since __cf_bm cookie name is shared across all sites protected by cloudflare bot management platform and session_id cookie name is generic enough to be used by other sites.

I think those kind of changes on patreon side are rare enough to just grab cookies from additional domain like other person suggested.

But still, I appreciate the effort! It's just not something I think is safe enough to use considering there has been issues with puppeteer's c# wrapper before which had to be debugged and fixed in the upstream code.

I will push fixed version of the application later today.