[Feature Request] Add estimated finish time

[Intranox]

It would be nice if there was a calculator in the app that lets you know, based on the tomatoes you want to reach, the time you finish the job. A simple manually calculator might already be useful, it would be even better if you could set an estimated number of tomatoes for a day and decrement that number each time a tomato is finished. Obviously the estimated time must be updated from time to time based on breaks.