[login] fix the redirect url after login (closes #11689118) redirecting to '/' by default after login doesn't work properly when a prefix is used, whether we're sitting behind a PrefixMiddleware or not. To fix this, rely on cubicweb's build_url to turn any relative path into an absolute url.

syntax: glob

*.pyc
*.swp

*.egg-info

docs/_build
pyramid_cubicweb/tests/data/database
.tox