Change multiple days with the same pattern

[openscript]

This feature is based on this request:

issue with this function: the way I tried to copy the days/caregivers across different days does not work. You can add new caregivers at the same hours on different days, but when you try to edit the existing caregiver on a day, the menu changes and you cannot add them to multiple days anymore, just move them from one day to the other. I recorded the screen to show what I mean.

lemon_copy_issue.mov

Originally posted by @stwerm in #322

The reply originally was:

Unfortunately this is an intended made decision to implement it like this. The reason for this, is that each entry is independent. Unlike other calendar applications, we have only implemented the 'by week' recurring rule. To enable removing or creating copies when you edit an entry, we need to implement:

• Searching for other entries, which are exactly the same (carer, language exposure, time match).
• Remove or add copies of an entry after the edit was made.

I estimate that this takes another 4 hours to implement.

We would start moving into the direction of implementing more recurring rules, what we discussed once in the beginning.

Like when an entry is created, it should be possible to manage copies of an entry. So if the same entry exists on two days, it should be possible to change the days or add more days.