add arrows to events to show they continue off the calendar

style.css

/* Event continues BEFORE */
%root% .x-calendar-event:not(.fc-classic-3J4).fc-classic-USt::before {
  content: '<';
  color: var(--fc-event-contrast-color);
}
 
/* Event continues AFTER */
%root% .x-calendar-event.fc-classic-3J4:not(.fc-classic-USt)::after {
  content: '>';
  color: var(--fc-event-contrast-color);
}