message: fix send email callable
diff: import * as admin from "firebase-admin";
  import * as _ from "lodash";
  import { db } from "../config";
  +
  const serverTimestamp = admin.firestore.FieldValue.serverTimestamp;
  /** fills template with doc values or default value if key doesn't exist */
  export const replacer = (data: any) => (m: string, key: string) => {
  @@ -32,7 +33,7 @@ export const sendEmail = async (templateId, row: any) => {
  row
  );
  - return db.collection(Collections.fireMail).add({
  + return db.collection("firemail").add({
  to: row.email,
  message,
  createdAt: serverTimestamp(),
  