Fix Push Notification in Expo Project

Hi - We have an Expo Project, we are getting the push notification in the expo go app. but despite following the steps here https://docs.expo.dev/push-notifications/using-fcm/, we are not getting the push notification in the build if the phone doesn't have expo go app installed.

The server has the following error message:
```
{"data":{"id":"12783039-cb45-49ef-9af4-ecedb76c275c","status":"error","message":"The recipient device is not registered with FCM.","messageEnum":7,"details":{"error":"DeviceNotRegistered","errorCodeEnum":3,"fault":"developer"}}}%
```

Goals
1. Make Push notifications work in the expo-generated build WITHOUT expo-go app installed.
2. Make push notifications work on iOS as well
3. Use the appropriate app icon.

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