Print JS has window in dist/print.js and therefor doesnt work on SSR

HI!

I am using print js and its great!
The only problem I am facing is that the dist/print.js had on line 10 a window declaration which will fail on ssr when trying to load the site with a printjs import.

First 10 lines of dist/print.js
```
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory();
else if(typeof define === 'function' && define.amd)
define([], factory);
else if(typeof exports === 'object')
exports["printJS"] = factory();
else
root["printJS"] = factory();
})(window, function() {
return /******/ (function(modules) {
```

According to this site https://zenuml.medium.com/window-is-undefined-in-umd-library-output-for-webpack4-858af1b881df

a fix would be adding globalObject this. I will check further but thought i'd create an issue already!