Manual adjustments to WorkoutPlan notifications schedule #3
Description
We need to allow user customize notifications schedule for the workout. E.g. Jack doesn't like that "prepare for the exercise" sound is played 5 secs before it starts. He wants 8 secs instead. He should be able do it.
Another use case is that user wants some custom notifications during the workout. E.g. Jack wants to know when every 10 seconds of an exercise passes. He wants to hear: "ten...twenty...thirty...(finish sound)".
The idea is to provide default behavior, that can be overridden. Overrides should be stored in db, obviously. *Discussion is mandatory before implementing this. *