Implement food-is-ready alarm
This task should be a special case of a general use case: Notify people in the house about specific events of interest.
Use case: Food is ready.
The cook presses a button in the kitchen and a short, non-annoying notification melody is played in (some) other rooms.
Definition of done for Winter Roadmap:
- There is a button to be pressed in the kitchen
- There is at least one room that gets a melody played
Possible future use cases:
- Power Hour, CoMe notification
- (very soft) time signal in the sleeping floor: "It is now 8.00"