activate redirects again

[rmnldwg]

Previously, we have shared a couple of shortened URLs that were set up to redirect to a specific querying in the dataexplorer (e.g., when we published a screenshot of LyProX). However, with the new API and everything, this doesn't work anymore.

What we should do is look at the URLs we redirected to and see if we can reverse engineer the corresponding new URL. Then, we need to activate the redirect using nginx again.