GtkRecentManager: Formatting fixes
Formatting fixes
Formatting fixes
GtkCalendar: Use GDateTime for calculations

Instead of old copy-paste code, use GDateTime to determine week
numbers and days of week.
Adwaita: Bring back 'other month' coloring

The days that are not in the current month used to be rendered
in a ligher color. This was lost at some point. Bring it back.