Keyboard Fixes

[Jack-Byrne]

Testing Plan

• I have verified that I have not introduced new warnings in this PR (or explain why below)
• I have tested this PR against Core and verified behavior (if applicable, if not applicable, explain why below).

Core Tests

1. Test initialText for keyboard
2. Test keyboardEnter behavior
3. Test user mask input callback
4. Test custom keys dont overwrite layouts

Core version / branch / commit hash / module tested against: develop
Proxy+Test App name / version / branch / commit hash / module tested against: keyboard enhancements

Summary of changes:

Apparently React constructors are important and having static props do not update every time the component goes in and out of view.

CLA

• I have signed the CLA

[iCollin]

Approved