Save message instantly to redux for both foregrounded and backgrounded app
Summary: This changes our notification handling so that event about received notifications is sent to JS when the app is backgrounded as well.
Test Plan:
- Build the app prior to applying this diff.
- Background it, send a notif.
- Kill keyserver.
- Open the app.
Message is not visible in the thread.
- Repeat the steps above after applying this diff.
Message is visible in the thread even though keyserver is down.
Reviewers: tomek, atul, bartek
Reviewed By: atul, bartek
Subscribers: ashoat
Differential Revision: https://phab.comm.dev/D7193