Summary: When trying to refactor some components, did once again run into circular imports that cause the flipper startup sequence to fail. Added linting rules to make sure this is much less likely to happen in the future, and fixed all resulting errors
Reviewed By: nikoant
Differential Revision: D24390583
fbshipit-source-id: 9b20cf6a4d3555dc68f0069c2950dd7162b17e67