Amended the logic for newPrefix in the MarkdownEditor to resolve
incorrect number ordering.
Fixes#33184
Attached screenshot of fixed input similar to issue
<img width="175" alt="Screenshot 2025-01-09 at 23 59 24"
src="https://github.com/user-attachments/assets/dfa23cf1-f3db-4b5e-99d2-a71bbcb289a8"
/>
---------
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
None of the frontend js/ts files was touched besides these two commands
(edit: no longer true, I touched one file in
61105d0618
because of a deprecation that was not showing before the rename).
`tsc` currently reports 778 errors, so I have disabled it in CI as
planned.
Everything appears to work fine.
