Summary: adding documentation for more of our UI components. Deleted some unused components, which were not working anyways. Reviewed By: jknoxville Differential Revision: D12896109 fbshipit-source-id: 959c7864240883869ad67283f80a3c189b94bf00
fbshipit-source-id: b6fc29740c6875d2e78953b8a7123890a67930f2 Co-authored-by: Sebastian McKenzie <sebmck@fb.com> Co-authored-by: John Knox <jknox@fb.com> Co-authored-by: Emil Sjölander <emilsj@fb.com> Co-authored-by: Pritesh Nandgaonkar <prit91@fb.com>