[MM-22102] upgrade to electron 7 (#1268)

* fix errors

* upgrade to electron 7

* getsavepath is deprecated

* fix typo

* disable messaging from 'null'

* replace getname to its property

* deprecated zoomlevel

* deprecated setbadgecount

* isdarkmode deprecated

* it's a property, not a function

* fix error message

* fix test

* fix test on linux

test/modules/environment.js

@@ -57,7 +57,7 @@ module.exports = {
       // enable this if chromedriver hangs to see logs
       // chromeDriverLogPath: '../chromedriverlog.txt',
     };
-    if (process.platform === 'darwin') {
+    if (process.platform === 'darwin' || process.platform === 'linux') {
       // on a mac, debbuging port might conflict with other apps
       // this changes the default debugging port so chromedriver can run without issues.
       options.chromeDriverArgs.push('remote-debugging-port=9222');