[native] Don't skip updating from inactive to background
[native] Don't skip updating from inactive to background

Summary: This diff fixes an issue introduced in D873 where the iOS app doesn't disconnect the socket when the user backgrounds the app.

Test Plan: Make sure that the iOS app correctly sets `lifecycleState` to `background` when the user backgrounds the app

Reviewers: atul

Reviewed By: atul

Subscribers: KatPo, palys-swm, Adrian

Differential Revision: https://phabricator.ashoat.com/D1273

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