cuelang.org: front matter for a page should be CUE

[myitcv]

What page were you looking at?

https://alpha.cuelang.org/

What version of the site were you looking at?

https://github.com/cue-lang/cuelang.org/commit/eb2ecd699e4451e0284f62764d145abdd14040e2

What did you do?

Tried to author a new page for https://alpha.cuelang.org

What did you expect?

To write CUE in the front matter.

What did you see instead?

That I had to write Yaml.

[myitcv]

I'm actually vacillating on this being a good idea or not. Perhaps all of the configuration just needs to move to the CUE file and the markdown file be pure markdown with no front matter.

[jpluscplusm]

A constraint that would be ideal to express in CUE has been added as a pipeline test, which should be replaced as part of this issue.