Added several fixes throughout for demo.

client/src/utils/DateFormatter.jsx

@@ -5,7 +5,9 @@ import { Tooltip } from "antd";
 
 export function DateFormatter(props) {
   return props.children ? (
-    <Moment format="MM/DD/YYYY ">{props.children}</Moment>
+    <Moment className={props && props.className} format="MM/DD/YYYY ">
+      {props.children}
+    </Moment>
   ) : null;
 }
 

client/src/utils/TemplateConstants.js

@@ -59,6 +59,7 @@ export const TemplateList = (type, object) => {
         "Sent to a customer as a reminder of an upcoming appointment.",
       drivingId: "appointment",
       key: "appointment_reminder",
+      subject: `Appointment Reminder`,
     },
     appointment_confirmation: {
       title: "Appointment Confirmation",