WIP FCM push messaging.

client/src/firebase/firebase.utils.js

@@ -3,6 +3,7 @@ import "firebase/firestore";
 import "firebase/auth";
 import "firebase/database";
 import "firebase/analytics";
+import "firebase/messaging";
 
 const config = JSON.parse(process.env.REACT_APP_FIREBASE_CONFIG);
 firebase.initializeApp(config);
@@ -32,3 +33,10 @@ export const updateCurrentUser = (userDetails) => {
     }, reject);
   });
 };
+
+const messaging = firebase.messaging();
+messaging.usePublicVapidKey(
+  // Project Settings => Cloud Messaging => Web Push certificates
+  "BBlvtEL73vYinkiAgK5t51jgDTYj6961OO_5niP4Q5py_l5yhTL8IGYkpONyMGoXs8ZTdVhEWsu3_IEXcW0cIIg"
+);
+export { messaging };