add modules to electron export, fix issues when downloading updates

electron/cryptoUtil.js

@@ -0,0 +1,11 @@
+const cryptojs = require("crypto-js");
+
+const encrypt = (string, salt) => {
+  return cryptojs.AES.encrypt(string, salt).toString();
+};
+
+const decrypt = (string, salt) => {
+  return cryptojs.AES.decrypt(string, salt).toString(cryptojs.enc.Utf8);
+};
+
+module.exports = { encrypt, decrypt };