UPDATED calculating calories on a single row.
UPDATED disable add button when there is no calorie to add.
UPDATED layout.
UPDATED changed rounding.
UPDATED layout of button with ternary test.
UPDATED calculations are now working.
UPDATED improved layout and flow.
UPDATED layout of overlay.
UPDATED layout of the overlay.
UPDATED fixed a small issue of display when navigating away and back.
UPDATED improved on the bug fix.