Add stricter flow lint rules (#3246)
Add stricter flow lint rules (#3246)

* add stricter flow lint rules

* Update .eslintrc

skovhus/jest,facebook/jest,cpojer/jest,skovhus/jest,facebook/jest,mpontus/jest,cpojer/jest,ide/jest,cpojer/jest,facebook/jest,bookman25/jest,skovhus/jest,bookman25/jest,ide/jest,mpontus/jest,mpontus/jest,bookman25/jest,ide/jest