[v24.3.x] Decommission status improvements

[vbotbuildovich]

Backport #26054 to branch v24.3.x. This issue was created as a placeholder because the original PR's commit(s) could not be automatically cherry-picked.
Here are the commands to execute:

git checkout v24.3.x
git checkout -b manual-backport-26054-v24.3.x-141
git cherry-pick -x 3b20ef27f7 f1f97ccd05 936098d525 48834cf3ed ba820b0e8b 17ff1d96c7 8f4b6a4ecd

git push origin manual-backport-26054-v24.3.x-141
gh pr create \
  --title "[v24.3.x] Decommission status improvements" \
  --base "v24.3.x" \
  --label "kind/backport" \
  --head "manual-backport-26054-v24.3.x-141" \
  --draft \
  --repo "redpanda-data/redpanda" \
  --milestone "v24.3.x-next" \
  --body "Backport of PR https://github.com/redpanda-data/redpanda/pull/26054 "

JIRA Link: [CORE-10084](https://redpandadata.atlassian.net/browse/CORE-10084)

[CORE-10084]: https://redpandadata.atlassian.net/browse/CORE-10084?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

[piyushredpanda]

Merged