Add day overview to print

[manuelmeister]

Fixes #5066

[github-actions]

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[carlobeltrame]

Open question: Currently, the activity filters also filter the activities in the day overview.
This may be desired in some cases, e.g. when planning a combined Wolfsstufe-Pfadistufe camp and printing only the Wolfsstufe programme. Or when filtering by days to print only the first day of the camp.
But in other cases, this may not be desired, e.g. when filtering out the mealtime category from the detailed programme, I might still want the mealtimes in the day overview.

The current workaround for day overviews which I send to people is to split the program building block into separate days (using the day filter), and inserting a one-day picasso before each such day programme. This way, the day overview picasso can be filtered separately, as desired.

Maybe we could do with just another toggle "apply filter to day overview", or maybe we need separate filters for the day overview? And probably we always want to filter the day overviews by day, regardless of these settings.

[BacLuc]

I would wait for @carlobeltrame approval to merge.
but it already looks very cool, thank you.

[BacLuc]

i think the time can be a little smaller, then we have more space for the activity title.

[BacLuc]

Funny minor bug:

If you now print day 1 of our course, on print 1 you get 1 daily overview, on print 2 you get the daily overview of day 1 and 2 because one activity overlaps.

But we can fix this later.