Fix absence declaration to close modal before opening form

Moved onClose() to the start of handleDeclareAbsenceClick to ensure the modal is closed before opening the input form. Also adjusted logic to set selectedDate if not already set.

Author: ChinemeremChigbo

src/pages/calendar.tsx

@@ -276,12 +276,17 @@ const Calendar: React.FC = () => {
   };
 
   const handleDeclareAbsenceClick = () => {
+    onClose();
+
     if (calendarRef.current) {
       const calendarApi = calendarRef.current.getApi();
       const today = calendarApi.getDate();
       setSelectedDate(today);
-      onInputFormOpen();
+    } else if (!selectedDate) {
+      setSelectedDate(new Date());
     }
+
+    onInputFormOpen();
   };
   useEffect(() => {
     const {