Authelia was using links with href="#" that changed the URL when clicked
on. Therefore, this commit removes the href property and apply link style
to tags without href property.
Authelia client uses hash router instead of browser router in order to work
with Kubernetes nginx-ingress-controller. This is also better for users having
old browsers.
This commit is breaking because it requires to change the configuration of the
proxy to include the # in the URL of the login portal.