Indentation isn't rendering for project steps in the embedded editor

[patch0]

Describe the bug

See slack thread

Step 2 on this project - https://projects.raspberrypi.org/en/projects/python-wild-dot-the-bug/editor
The code renders as attached
The first line (9) should be indented.

It is indented in the markdown - https://raw.githubusercontent.com/raspberrypilearning/python-wild-dot-the-bug/refs/heads/master/en/step_2.md
It is correctly indented in the non-integrated version of the project - https://projects.raspberrypi.org/en/projects/python-wild-dot-the-bug/1

Expected behavior

Code should be indented properly

Screenshots

Additional context

per the thread, it's looks like whitespace is being stripped when it shouldn't be. In the projects-ui Prism is configured to use the normalize-whitespace plugin such that it doesn't strip leading blank spaces.

In editor-ui this plugin doesn't seem to be being used.