Added tag to email to denote staging from production.

app/services/notificationService.js

@@ -1,4 +1,5 @@
 "use strict";
+const { STAGING } = require("../config/appConfig");
 const {
   matchRealEstates,
   matchSearchRequest
@@ -24,13 +25,17 @@ const notifyForNewSearchRequest = async searchRequest => {
 
   const searchRequestId = searchRequest.id;
   const matchingRealEstates = matches[searchRequestId].realEstates;
-
+  const stagingTag = STAGING ? "[STAGING] " : "";
   const emailContent = generateNewSearchRequestEmail(
     searchRequest,
     matchingRealEstates
   );
   const { email } = searchRequest;
-  await sendEmail(email, "Kivi - novi zahtjev za pretragu", emailContent);
+  await sendEmail(
+    email,
+    `${stagingTag} Kivi - novi zahtjev za pretragu`,
+    emailContent
+  );
 };
 
 const notifyMatches = async (matches, dailyNotification = false) => {