[Bug]: type issue LoginResponse

[yelhouti]

Version

15.0.5

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

Cannot destructure property 'isAuthenticated' of 'object null' as it is null.

Steps to reproduce the behavior

this.oidcSecurityService.checkAuthIncludingServer().subscribe(({ isAuthenticated }) => {}))

### A clear and concise description of what you expected to happen.

```true
checkAuthIncludingServer should always return a `LoginResponse`

Additional context

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

Lines 101 to 124 in d4932af

	checkAuthIncludingServer(
	configuration: OpenIdConfiguration,
	allConfigs: OpenIdConfiguration[]
	): Observable<LoginResponse> {
	return this.checkAuthWithConfig(configuration, allConfigs).pipe(
	switchMap((loginResponse) => {
	const { isAuthenticated } = loginResponse;
	if (isAuthenticated) {
	return of(loginResponse);
	}
	return this.refreshSessionService
	.forceRefreshSession(configuration, allConfigs)
	.pipe(
	tap((loginResponseAfterRefreshSession) => {
	if (loginResponseAfterRefreshSession?.isAuthenticated) {
	this.startCheckSessionAndValidation(configuration, allConfigs);
	}
	})
	);
	})
	);
	}

loginResponseAfterRefreshSession as can be seen can be null as forceRefreshSession can return null.

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

Line 113 in d4932af

return null;

Either change the type to take that into account. or make forceRefreshSession return a LoginResponse with authenticated = false

[yelhouti]

You rock thanks