Poorly formatted markdown can cause an error rendering in fields where markdown is supported

[NoopDog]

Need

In the AnVIL Explorer, there appears to be a problem with the browser rendering a description, which for some reason contains the string {flowcell_id}.css.bam

The affected project is https://explore.anvilproject.org/datasets/293801c6-846a-4743-8244-a97004b5e22b

Approach

• Reproduce locally by modifying the response
• See what is causing the error.
• Make sure the input to the markdown processor is sanitized meaning all JS is removed.
• Make sure that if the markdown function errors we at least display the raw data instead of the error page.

[NoopDog]

If needed we can drop support for varibles in the markdown processor if that is configurable.