User Story 13: Set & Display workouts on the calendar

Value proposition

As a user I want to set a workout routine so I can see them on my calendar

[ ] At the bottom of the workout page, I can toggle an Edit mode
[ ] In edit mode, I can click on the workouts to set the order of my training routine
[ ] clicking on the rest button will add a rest day to the routine
[ ] the added elements are displayed
[ ] clicking on the set button will save my routine and set an interval starting from the current day