Migrate to the new Google Identity Services library

[Jonnyprof]

• Change google endpoint
• Change entity to load
• Minor eslint fixes

closes #442

PS: Please test it!

[rafa-suagu]

@jaibatrik can you check this PR please?

[mandziukvlad]

No need to test it.

apis.google.com/js/platform.js
apis.google.com/js/client.js
are modules of Google API Client Library aka gapi.client (apis.google.com/js/api.js) which are already being used here and they are not a part of Google Identity Services.

You can read how to migrate to a new library here
Or if you want to see how to use it go here

[Jonnyprof]

Yes, I've followed the migration guide and the example from Google API Client Library for JavaScript (https://github.com/google/google-api-javascript-client/blob/master/docs/samples.md#authorizing-and-making-authorized-requests)

[smotornyuk]

Probably, you've used an outdated guide. Look at this line.
You are using the old library from apis.google.com. Here you can find an example explicitly stating that it's an "old style"

In the new style you should use accounts.google.com

[Julien57970]

Can someone fix it and merge the PR plz ? Because we need to migrate before the 31st of March, I just receive a mail from Google about it.
"Our announced plan earlier this month stated that authorization support for the Google Sign-In JavaScript platform library will no longer be supported after March 31, 2023."

[hheexx]

@Julien57970 dude, you have whole year left ;)

[Julien57970]

@hheexx I know but you don't know my C.I.S.O., he's already on my back for this.

[jaibatrik]

Hoping to check this and merge in a few days. Not having E2E tests makes things difficult.

[jaibatrik]

This is now published in v4.1.0.

[Androbin]

https://developers.googleblog.com/2022/03/gis-jsweb-authz-migration.html

If your web pages use the apis.google.com/js/api.js or apis.google.com/js/client.js JavaScript modules to load the Platform Library, you are affected and need to update your existing implementation to use the new Identity Services client library.

@jaibatrik Issue #442 is not resolved by this PR and needs to be reopened.

[jaibatrik]

I'd appreciate if someone sends a PR. I don't think I myself will get time. Let's use issue #489 to track this.