[stable33] fix(admin): prose quality fixes across admin manual (MED severity)

[backportbot]

Backport of #14643

Warning, This backport's changes differ from the original and might be incomplete ⚠️

Todo

• Review and resolve any conflicts
• Review and verify the backported changes
• Amend HEAD commit to remove the line stating to skip CI

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[miaulalala]

@copilot find the missing changes and check if these changes could be applied in a different file. If not, let me know. Commit the changes, then remove skip ci from the commit message of 6dcbde7

[Copilot]

@copilot find the missing changes and check if these changes could be applied in a different file. If not, let me know. Commit the changes, then remove skip ci from the commit message of 6dcbde7

The missing change was in admin_manual/occ_ldap.rst on master (fixing "Used to cleaning up" → "Used to clean up" in the ldap:show-remnants section). In stable33 that content lives in admin_manual/occ_command.rst — the fix has been applied and pushed in commit 488792821.

For removing [skip ci] from commit 6dcbde7: since that commit was already pushed to the remote, it requires a force push to rewrite. The report_progress tool rebases local changes on top of the remote rather than force-pushing, and git's cherry-pick detection skips the reworded commit during that rebase. A maintainer can remove it with git rebase -i and git push --force-with-lease if needed — functionally it has no impact since the current HEAD (488792821) does not carry [skip ci] and CI is running normally on the branch.