fix todays opening hours being off by one day

web/src/lib/openinghours.ts

@@ -1,6 +1,7 @@
 import {
   startOfToday,
   isAfter,
+  getISODay,
   parseISO,
   isSameDay,
   compareDesc,
@@ -199,7 +200,7 @@ export function getTodaysOpeningHoursForFunction(
   if (!week) {
     return "?";
   }
-  const weekdayIndex = startOfToday().getDay();
+  const weekdayIndex = getISODay(startOfToday()) - 1;
   const weekday = WEEKDAYS[weekdayIndex];
   const hours = week[weekday];
   if (hours.timeFrom && hours.timeTo) {