[v23.1.x] cluster/topics_frontend: Move some topic preprocessing into create_topics

[vbotbuildovich]

Backport #13657 to branch v23.1.x. Note that this issue was created as a placeholder, since the original PR's commit(s) could not be automatically cherry-picked.
Here are the commands to execute:

git checkout v23.1.x
git checkout -b vbotbuildovich/backport-13657-v23.1.x-319
git cherry-pick -x c417dbace8e63e2dda0a6235b073006ac83b6097 7106d1d62eb993838c7e16c764c8d3efb8b04186

git push origin vbotbuildovich/backport-13657-v23.1.x-319
gh pr create \
  --title "[v23.1.x] cluster/topics_frontend: Move some topic preprocessing into create_topics" \
  --base "v23.1.x" \
  --label "kind/backport" \
  --head "vbotbuildovich/backport-13657-v23.1.x-319" \
  --draft \
  --repo "redpanda-data/redpanda" \
  --reviewer "andijcr,abhijat,michael-redpanda" \
  --milestone "v23.1.x-next" \
  --body "Backport of PR https:/redpanda-data/redpanda/pull/13657 "

[BenPope]

Fixed by #13852