Current version of React throws this error:
Support for defaultProps will be removed from function components in a future major release. Use JavaScript default parameters instead.

This occurs in over 100+ Grommet components because they're still using defaultProps

Expected Behavior

Convert defaultProps to JavaScript default parameters instead.

Actual Behavior

URL, screen shot, or Codepen exhibiting the issue

Steps to Reproduce

Your Environment

• Grommet version:
• Browser Name and version:
• Operating System and version (desktop or mobile):