attempt 4 at doing a dependency right

bot.js

@@ -2,7 +2,7 @@
 const Discord = require('discord.js');
 const auth = require('./auth.json');
 const XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
-const fetch = require("isomorphic-fetch");
+const fetch = require("node-fetch-polyfill");
 
 // voice setup
 var playQueue = [];