Add support for Poison counter

Inkfathom doesnt support https://scryfall.com/card/tnph/5/poison-counter

The solution I like would be the one where I can add and print it

I tried [everywhere](https://inkfathom.netlify.app/?cards=Poison+Counter&tokens=Poison+Counter&emblems=Poison+Counter).

This problem should be the same for all the card typed ['card'](https://scryfall.com/search?q=t%3Acard&unique=cards&as=grid&order=name)

Shout out to Vekranith for the discovery