Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48143
Changelog: [internal]
Just a small cleanup to move `jest/integration/*` to `packages/react-native-fantom`, so everything related to Fantom (config, runner, runtime, etc.) is in the same directory.
Reviewed By: javache
Differential Revision: D66874763
fbshipit-source-id: 8b87d7320c7704f7ce6cd58761508193784f5ce2