[APP-786] Native notifications

[ansh]

Related to bluesky-social/atproto#1428
Pull the above branch, build using yarn and then use the dist from the api package instead of the current one

To test on Android, you also require google-services.json from Firebase

(lint errors exist because of the above)

addNotificationResponseReceivedListener will not run in dev mode, so please start the frontend server in production with npx expo start --no-dev --minify

There are no regressions in this PR, however there are a few improvements that can be made in the future, but aren't implemented because they need more discussion:

• Deeplink to a post when clicking on a notification (right now it just goes to the notifications screen)
• Display images in notifications when the post has an image
• Potentially display notifications when app is in foreground

[pfrazee]

PR seems fine so far. Let's get backend merged and the API changes published, then we can test this in testflight. Until the backend stuff is in prod, testflight doesn't do us much good.

[pfrazee]

🚀 🔔