Make daily challenge day selector more intuitive

[Epikest]

#12244 introduced a change where the daily challenge dropdown was replaced with a calendar view.

however, the layout doesn't resemble a real calendar which makes finding specific challenges on named days of the week quite difficult.

taking inspiration from the Windows 10 calendar could make this more intuitive, with days of the week at the top and each row featuring the seven days as the columns. localization could also be added for locales that start with a different first day of the week.

[tadatomix]

As long as I find this idea cool, important notice is that not all of the countries counting start of the week with Sunday

[peppy]

I was hoping for a calendar style display when this was being worked on, but it was a bit higher efffort. Hopefully we can make it happen one day.

important notice is that not all of the countries counting start of the week with Sunday

It really doesn't matter which day a calendar starts on here. We don't need to cater to this.

[nanaya]

more like it'll take a lot more vertical space and potentially not quite work on mobile