Split opening days and exceptions

Hi Tim,
please what you want to change, compared with current dev version.

Some ideas/questions:
- you can already theme the headers separately.
- your grouping of exceptions days is still an @todo on the list (only mentioned in-code, not in an issue)
- I believe that the output you want is otherwise already possible. Although only with the Table widget, not the 'default'/'text' widget.
- what would be your output if 24-dec were not a Sunday, but a normal working day, with earlier closing time then the regular 18:00 ?
- please check ✨ Season Formatter: Each season week as individual table Needs review which outputs separate tables
- I did think about a setting 'display normal weekdays'; this way, in a view or block, you can add separate formatters/tables with separate theming for weekday/season/exceptions., as an alternative to ✨ Season Formatter: Each season week as individual table Needs review

I am happy to add new styl;ing classes if needed.

I'm already using the current dev version as there ware fixes I saw we needed and I would not want to fall behind on the new features. I know some would argue you don't use dev versions in prod, but sometimes I need this as there are pieces of code needed and they are shattered across different commits.

I was indeed maybe only looking at the default/text widget. Could be that other formatters are able to output what I needed.
For the moment I was able to output what I needed by overwriting a function. Maybe if I have more time I can look into this deeper. Just wanted to put this on the radar and see what the possibilities are/were.

You request is already possible.
I did add implement ✨ Support grouped days for Exception dates Fixed , related to your request.
Please try dev version.