Create the edit/add exercise page

EditExerciseRecord: also used for adding new exercises

    --- TEMPLATE ----

    A button to cancel / go back
    A button to Delete the current exercise (if not in edit mode)

    Input for exercise name
    A dropdown menu to select the set-type (myo, mtor, rest-pause-double, etc.)
    Textarea for Notes

    Dynamic form (warm-up sets):
        A button to add a warmup-set element. 
        Each element contains a number, weight (input), reps (input), and button to delete element.

    Dynamic form (working sets):
        *** This will look different depending on the specific type of set. In general, it will have
            the set #, weight, and reps

    A button to submit the form

nkfoss / Ohm-str-react

Create the edit/add exercise page #4