Because of the Next.js bug with the 404 on the
dynamic routes, we are not able to assert some
behaviors from the e2e tests and the CI.
So we are adding a ngnix to the CI e2e tests
to be able to route correctly our frontend.
To speed up pull request flow, put e2e tests
only mandatory for Chrome.
We still have tests for Firefox and Webkit,
but they are not mandatory.
They will still have to be checked regularly,
particularly during the deployment phase.
