* Add feature flag route guard and tests
* Add additional test for not showing error toast
* Strengthen error toast test with message check
* Cleanup leaking test state in platformService mock
* Negate if statement to reduce nesting
* Update return type to CanActivateFn
* Use null check instead of undefined
* Introduce interface to support different feature flag types
- Switch to observable pattern to access serverConfig$ subject
- Add catchError handler to allow navigation in case of unexpected exception
- Add additional tests
* Add additional test for missing feature flag
* Remove subscription to the serverConfig observable
Introduce type checking logic to determine the appropriately typed flag getter to use in configService
* Update the feature flag to fallback to blocking the route on an unexpected exception
* Trigger test action
* Fix imports after merge with master
