"Regular Expression Denial of Service in trim" alert generated by Dependabot about Spectacle repository

Prerequisites

[x] I have searched the open issues to make sure I'm not opening a duplicate issue
[x] I have read through the docs before asking a question
[x] I am using the latest version of Spectacle

Describe Your Environment

What version of Spectacle are you using? (can be found by running npm list --depth 0 spectacle)

10.1.4

What version of React are you using? (can be found by running npm list --depth 0 react)

18.2.0

What browser are you using? (e.g., Chrome 105.0.5195.102, Safari 16.0)

Safari Version 16.4 (18615.1.26.11.23)

What platform are you on? (e.g., Windows, macOS, iOS, Android)

macOS

Describe the Problem

Install Spectacle by running npm add spectacle.
Push code to GitHub.
Enable GitHub Dependabot alerts.

Expected behavior: [What you expect to happen]

I expect Dependabot to generate zero security alerts.

Actual behavior: [What actually happens]

Dependabot generates alert regarding Regular Expression Denial of Service in trim. The advisory is detailed here: https://github.com/advisories/GHSA-w5p7-h5w8-2hfq

Additional Information

Seems like version 8.0.3 of remark-parse is the package that depends on the vulnerable 0.0.1 version of trim. Starting from version 9.0.0, remark-parse does not seem to depend on trim anymore.

Therefore the issue may be resolved by updating remark-parse. I can help to work on this.

I started to take a look at this, and I found that we have to upgrade the entire unified ecosystem. It seems that there was may have been a change in the types that the compiler returned by unified accepts that I can't find in the release notes. In particular, after following the prescribed upgrade steps (see commits above), I'm getting

src/components/markdown/markdown.tsx(193,59): error TS2345: Argument of type 'Parent<Node<Data>, Data>' is not assignable to parameter of type 'Root'.
  Types of property 'type' are incompatible.
    Type 'string' is not assignable to type '"root"'.`

I'll keep poking around, but I thought I'd post partial progress in case anyone has an idea on how to resolve this.

FormidableLabs / spectacle