Summary:
Currently state writes can either go through a named handler that is easy to find and debug or they can directly modify the state.
By exposing readonly atoms only we ensure that all state writes go through a UIACtions. This adds consistency and ease of future debugging.
E.g We could add a utility to wrap all ui actions with logging statements
Reviewed By: antonk52
Differential Revision: D47547531
fbshipit-source-id: f88651169d8e7c5f7e31068d64f9aa5b6b573647
957a336349