Add darkmode

[luluhoc]

Please add dark mode option to the calendar

[a-alsharif]

.calendar { background-color: #333; color: #fff;

.day-name, .day, .innerDay { background-color: #444; color: #fff; }

.calendar-navigate { color: #fff;

.event { background-color: #555; color: #fff!important; }