Missing parameters: id_token_hint

[paulchartres]

As per the example, I added a cy.logout in my afterEach hook. Login in beforeEach works just fine, but as soon as it tries logging out, I get an error from Keycloak saying that id_token_hint is missing. I'm not sure on what I should fill in there. I think it might be the Keycloak token (which isn't accessible as mentioned in ticket #39. Apologies if this is an obvious one, I'm not that experienced with OIDC and whatnot.