fix: add condition on useEffects to block infinity loop

[Valimp]

What

We have an infinity loop on development mode
useEffects was updated every time the userState changed

Solution

don't check useEffects if you are in devMode

[Valimp]

Have to test it on preprod

[raphael0202]

You can test it on staging by pushing a new branch deploy-*.
Example: deploy-117 here.