Ensure flow for turning on / off the API + bluetooth is working.

[timarney]

We need to do a review of the flow and the different combinations of

• blue tooth on/off & EN/ on/off

I have a PR here - #88

and

@ChrisDryden has a separate PR here #90 that

This PR is a demo of how using the "react-native-bluetooth-status" library can allow us to update the bluetooth status in the app for android and be able to check whether bluetooth is enabled for iOS and Android to render the Bluetooth enablement warning.

---

Via
@Stephen-PM

Ref: TestFlight 6.0

My bluetooth is off, but I am not getting the warning screen. Also, it should say StopCOVID is OFF.

[timarney]

Per CovidShield/mobile#114

We need to coordinate with @dsamojlenko on Monday to get a build with entitlements pushed up.

[timarney]

CovidShield/mobile#137

Via CovidShield/mobile#125 (comment)

Hi @ChrisDryden ,

I was discussing with my team few days ago and we think it makes more sense for user to not care about bluetooth if using exposure notification (EN). That means:

The turn on bluetooth UI should be removed.
Android bridge for EN should also check bluetooth status and returns same payload as iOS.
When turn on EN, Android should turn on bluetooth at the same time.

[timarney]

We'll pull the upstream for Android when it's ready.