Codemirror editor is very broken when editing recipes

[mythmon]

This must have happened from some package update

[mythmon]

git bisect points to ed5a460 / #449.

[mythmon]

I found this issue: codemirror/codemirror5#5484

That isn't exactly our situation, but it makes me wonder if the code splitting (which means that module-globals are no longer shared between modules) is to blame here. I'm not sure how to go about fixing this. I think if we can't figure out how to make this compatible, we can go back to not lazy loading the pages for the web version.

This doesn't affect the extension version of NDT.

[mythmon]

Fixed by #551.