build(deps): Bump remark-math from 5.1.1 to 6.0.0 in /api-editor/gui (#1492)

Bumps [remark-math](https://github.com/remarkjs/remark-math) from 5.1.1
to 6.0.0.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/remarkjs/remark-math/commit/d5d0660b150810a535bbb07eac6cc96a4510aa24"><code>d5d0660</code></a>
6.0.0</li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/dd3075a597d243671bf2bbb46400e3e0f3577078"><code>dd3075a</code></a>
Refactor docs</li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/f1733469de2f86d1173637cb35b8077dee6d908f"><code>f173346</code></a>
Change to replace wrapping elements</li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/4223ed9d10257db66fd526716504ce9832f15ff1"><code>4223ed9</code></a>
Change to use <code>exports</code></li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/23914b6741409ed7436cc37a960309615a68990f"><code>23914b6</code></a>
Refactor to move code to <code>lib/</code></li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/e8039d7459e4fcda53d03e516a74a13974ada4b7"><code>e8039d7</code></a>
Change to require Node.js 16</li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/232f0d7ee05dcbcf7d06c1915538e7592c70f210"><code>232f0d7</code></a>
Remove <code>throwOnError</code> option, improve message</li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/2cc07437c3863c4a4bba41fe2d4aa00a6d41067e"><code>2cc0743</code></a>
Refactor code-style</li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/3658eddeaa4b3e5b7765ccd1e85e9666ecf65838"><code>3658edd</code></a>
Update <code>jsdom</code></li>
<li><a
href="https://github.com/remarkjs/remark-math/commit/3aab0e142b9aeeb567bf21255da4c3b8217a9c42"><code>3aab0e1</code></a>
Deprecate <code>remark-html-katex</code></li>
<li>Additional commits viewable in <a
href="https://github.com/remarkjs/remark-math/compare/5.1.1...6.0.0">compare
view</a></li>
</ul>
</details>
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