`Fixes #3465`
Add config option `specialDayUnique` that defaults to `false` and causes
special day compliments to be added to the existing compliments array.
Setting this option to `true` will only show the compliments that have
been configured for that day.
---------
Co-authored-by: Veeck <github@veeck.de>
Co-authored-by: veeck <michael.veeck@nebenan.de>
Co-authored-by: Karsten Hassel <hassel@gmx.de>
