Don't double-stringify fcm payloads

functions/gcloud.ts

@@ -276,13 +276,13 @@ export async function sendPushNotification(
   body: string,
   token?: string,
 ) {
-  const message = JSON.stringify({
+  const message = {
     notification: {
       body,
       title,
     },
     token,
-  });
+  };
 
   const notifResp = await fetch(
     "https://fcm.googleapis.com/v1/projects/car-crushers-mobile/messages:send",