docs: updated prod related content

* Website is now operated from a separate user `rex-dri`
Status Job ID Name Coverage
  Check And Lint
passed #945548
docker
check_back

00:00:25

passed #945549
docker
check_front

00:02:01

passed #945550
docker
lint_backend

00:00:23

passed #945551
docker
lint_frontend_and_documentation

00:01:00

 
  Test
passed #945552
docker
test_back

00:01:51

79.0%
passed #945553
docker
test_frontend

00:00:31

 
  Svg Gen Docu
passed #945554
docker
generate_UML_svg

00:00:08

 
  Documentation
passed #945555
docker
pages

00:00:09

 
  Deploy
passed pages:deploy

00:00:00