RN0.63 9/16: YellowBox -> LogBox

Summary: In React Native 0.63, YellowBox is deprecated in favor of LogBox.

Test Plan: I made sure the warnings about YellowBox deprecation stopped being printed

Reviewers: palys-swm

Subscribers: KatPo, zrebcu411, Adrian

Differential Revision: https://phabricator.ashoat.com/D319