Update token_grabber.py

[yokelman]

Different servers are going to have different webhook URLs, so you can't substitute that string with one webhook URL. That would make all of the embeds go to that particular webhook/server.

[AstraaDev]

This person modified the file just to put his webhooks and thus by the same occasion, redirect all the tokens to his server.

[scratchusernamemrtbts]

Imagine leaking ur webhook url