Calendar: Abreviated day names for all "week" displays

Hi there,

I noticed, that in the “work week” display mode, the days are shown as " 29 Mo", while in the “whole week” and “next 7 days” display mode, they are only shown as “29”. It would be IMO better to alway use the “29 Mo” like display.

Thanks for considering

Dominik Lenné