Fix logout with Auth0

[mraible]

Fixes #782.

The biggest change is migrating to Expo SDK 46, which updates to the latest React Native and React versions.

[mraible]

I disabled the iOS E2E GitHub workflow since tests aren't passing. I did get detox to work locally. The error when running detox in CI is:

03:04:36.369 detox[17902] INFO:  Employee Screen Tests: should allow you to create, update, and delete the Employee entity
03:04:42.838 detox[17902] INFO:  [AppleSimUtils.js] host.exp.Exponent launched. To watch simulator logs, run:
        /usr/bin/xcrun simctl spawn AD390904-C412-4E47-A4AA-2E56F70F8AEB log stream --level debug --style compact --predicate 'process == "Expo Go"'
03:04:45.223 detox[17902] WARN:  [DetoxConnection.js/ERROR, #49487] Action dispatched too early, there is no session to use:

HINT: Please report this issue on our GitHub tracker:
https://github.com/wix/Detox/issues

{
  type: 'AppWillTerminateWithError',
  messageId: -10000,
  params: [Object]
}