By default Docs will not be on the dsfr theme but on the generic theme. La Gaufre is part of the dsfr theme and is removed from the generic theme. Same for the "beta" keyword and the "proconnect" buttons.
Adapt the other error pages to the new design.
We will cache the login token in the browser storage and reuse it between tests. This will speed up the tests and reduce the load on the server.
Adapt e2e test to works with Impress.
