Refactor: Move navigation logic to parent component

[MDaniel96]

• [ ] Introduce navigationState model object with attributes which were used on it
• [ ] Extract getWorkoutFromRoute() to parent component which sets navState on parent
• [ ] Provide callback method to notify children about navStateReady
• [ ] Extract navigation by wrapping navigateForward with url, pageSlide and navState params
• [ ] Extract isIos()
• [ ] Refactor all child classes