Incorrect toolbar timings bar widths

They should be calculated relative to the remaining width, not the full width of the cell. With the current code, four timings of 250ms each would get smaller towards the end (25% of100%, 25% of 75%, 25% of 50%, 25% of 25%).

Also restructure the contents of the timers array, now it's `(stat, start, duration, end)`, not `(stat, end, duration, end + duration)`, which was probably an error.