Fix translation tag

Author: adamspd

appointment/templates/appointment/appointments.html

@@ -114,7 +114,7 @@ <h1 class="page-title">{{ service.name }}</h1>
         const noStaffMemberSelectedTxt = "{% trans 'No staff member selected.' %}";
         const selectTimeSlotWarningTxt = "{% trans 'Please select a time slot before submitting the appointment request.' %}";
         const dateInPastErrorTxt = "{% trans 'Date is in the past.' %}";
-        const selectDateAndTimeAlertTxt = {% trans 'Please select a date and time' %};
+        const selectDateAndTimeAlertTxt = "{% trans 'Please select a date and time' %}";
     </script>
     <script src="{% static 'js/appointments.js' %}"></script>
     <script src="{% static 'js/js-utils.js' %}"></script>