Improved OAuth errors handling

As discussed @lyrixx, we now rely on the `DefaultAuthenticationFailureHandler` of Symfony which handles redirection in a clean way and as our work in `ConnectAuthenticationFailureHandler` is already handled in `AbstractAuthenticationListener` which is already extended by `ConnectAuthenticationListener`
To be able to do that we need to make `OAuthException` extends `AuthenticationException`
My bad I thought that was already the case.
@lyrixx maybe we should add it in the suggests or dev?