Display emission on the show overview page in descending order
As discussed in the meeting on Nov 4 2020 and on Dec 15 2020, something similar to the following:
Display emissions in descending order by their date
- 4 emissions after the next emissions (not only the current day)
- 1 next emission due (somewhat emphasized)
- 5 past emissions (somewhat grayed out)
This should be the default view when entering the page. Using the filter it's of course possible to get more emissions of the past and the future, if required.