Remove static functions

[oczki]

Safari doesn't support static in JS, so the userscript will not work there.

[oczki]

Old

class Foo {
  static flag = 10;
  static bar(x, y) {
  }
}

New

let Foo = new function() {
  this.flag = 10;
  this.bar = (x, y) => {
  }
}