Fix the config of my nginx

I have thankfully followed the instructions from https://www.digitalocean.com/community/tutorials/how-to-configure-jenkins-with-ssl-using-an-nginx-reverse-proxy-on-ubuntu-20-04. Please understand that I cannot give you access to my server, so there is no reason to ask for it.

Good and expected results:
- the jenkins server responds as https://aeiforia-solutions.eu/ when I call http://aeiforia-solutions.eu

Undesired results:
- the jenkins server still responds on http://aeiforia-solutions.eu:8080/ where I expect it to redirect over https
- thejenkins server overlays my nginx index-pages so that I cannot GET https://aeiforia-solutions.eu/index.html