RN0.63 10/16: Replace underlineColorAndroid
Summary:
underlineColorAndroid no longer seems to work. It only matters for devices with API level 21 (Android 5.0) and lower, but the property appears to have no effect.
More details on this React Native GitHub issue.
Test Plan: I tested each callsite individually on API levels 21, 22, 23, and 29. Most of them needed to be replaced with the borderBottomColor: 'transparent' style, but two (Entry and ChatInputBar) did not seem to have issues.
Reviewers: palys-swm
Subscribers: KatPo, zrebcu411, Adrian
Differential Revision: https://phabricator.ashoat.com/D320