Added the last period force remove if user unmarked the first day of the last period

[imblowfish]

Closed #166
Closed #171

In this PR I added possibility to save empty array of cycles. Also I removed isMarkedFutureDays because now we using ion-datetime built-in limitation instead of custom checks
Also I added the new test #195

[imblowfish]

@IraSoro please give me rights to modify peri-tests projects. I cannot add this test #195 in this project

[IraSoro]

2 bugs:

1. When the user marks only the future day, not the last one is removed, but all the cycles.
2. When you switch to the editing of the calendar, the calendar switches in the first month of history, and not the last

[imblowfish]

@IraSoro I agree with the first bug. It was because I believed in the variable name lastPeriodDays and didn't check twice what it stores. It turned out that this variable stores all dates instead of the last period days. To fix that I renamed current getLastPeriodDays function to getPeriodDays and added the new lastPeriodDays function which returns what is promised in the name

About the second bug. I cannot reproduce what you described. As example, I generated 2 cycles


And we have forecast period here

Let's click on Edit and this is what we get

As expected, edit calendar will open the last cycle to edit

Let's click on Mark and we'll get

Let's click on Edit again

As you can see edit calendar shows December as expected

[IraSoro]

Everything is fine. Just add the ability to edit future days.

[IraSoro]

@imblowfish please check the last commit

[imblowfish]

@imblowfish please check the last commit

Everything is fine