Have API home redirect to docs

[RealOrangeOne]

If the API is mounted at /api, visiting /api results in a 404. In debug, there's a message with the docs url, but not during deployment.

This PR changes the view to redirect to the docs instead. The redirect is intentionally not permanent.

I've also removed functools.partial, and instead pass arguments directly with Django, which makes the stacktraces a little more readable.