[FEAT]: Use PKCE OAuth flow

[gamemaker1]

Is your feature request related to a problem? Please describe.

Currently to setup an account, you need to create an app with your own Google/Microsoft account and get the client ID, secret, then authorize the app. It would be less of a hassle for users if all they needed to do was to authorize the app.

Describe the solution you'd like

Use PKCE OAuth flow (supported by Google, Microsoft, Dropbox, etc) to get an access token.

Describe alternatives you've considered

The less secure alternative is embedding the client secret into the CLI itself.

Additional context

Add any other context or screenshots about the feature request here.