Review the way the "redirects" are used

[michielbdejong]

In a nutshell: none of these presumably redirected resources are actually available a different URI. For example, the identity of the resource "newsletter" can't be found on the resource identified for "homepage", and the list goes on

[michielbdejong]

I'm not sure what this means exactly or how to fix this.
I'm also not sure whether the way redirects work when running npx serve on a locally checked out copy is the same as what would happen on the live site.

Let's leave this open and double-check after the launch if any more changes to these redirects are needed.

[michielbdejong]

Wrapping #841, #865, #882 and #883 into this.