ApplicationRef.isStable is always false when using this package

[BillyBlaze]

Describe the bug
When you kick-off the setup (with checkAuth) then this package will create intervals and timeouts. When using Service workers it's important to get the application into stable mode or else the new version isn't downloaded. However this is not possible because this package is making it unstable and it will never turn stable.

To Reproduce
Steps to reproduce the behavior:

1. Add this snippet somewhere (e.g. constructor of app.module.ts):

    this.applicationRef.isStable.pipe(
    	tap(isStable => console.log(`ApplicationRef::stable`, isStable))
    ).subscribe();

2. Initialize this package with calling checkAuth (we do it in the initializer, so that the guards are fully working with this package)
3. Notice that in the console the message 'ApplicationRef::stable false' is recieved but you will never get 'ApplicationRef::stable true'
   • When you do have a "stable" version you should see 'ApplicationRef::stable false' and than followed up by 'ApplicationRef::stable true'

Expected behavior
intervals and timeouts should be run outside the NgZone so that it wont interfere with the "stability" of Angular.

This package reaches stable for me when these two culprits are run outside angular:

angular-auth-oidc-client/projects/angular-auth-oidc-client/src/lib/callback/intervall.service.ts

Line 18 in 710af82

return interval(millisecondsDelayBetweenTokenCheck);

angular-auth-oidc-client/projects/angular-auth-oidc-client/src/lib/iframe/check-session.service.ts

Line 132 in 03aa2ad

this.scheduledHeartBeatRunning = setTimeout(pollServerSessionRecur, this.heartBeatInterval);

#961

[damienbod]

@BillyBlaze Thanks for the PR. I'll go through this in the next few days, merge and release, up to my eyes in work.

Greetings Damien

[damienbod]

@BillyBlaze Thanks works great. Will be releasing in the 11.5.1 version

Greetings Damien