website: bump katex from 0.17.0 to 0.18.1 in /website (#558)

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.17.0 to 0.18.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/KaTeX/KaTeX/releases">katex's
releases</a>.</em></p>
<blockquote>
<h2>v0.18.1</h2>
<h2><a
href="https://github.com/KaTeX/KaTeX/compare/v0.18.0...v0.18.1">0.18.1</a>
(2026-07-19)</h2>
<h3>Bug Fixes</h3>
<ul>
<li><strong>htmlData:</strong> allow escaped commas in \htmlData (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4236">#4236</a>)
(<a
href="https://github.com/KaTeX/KaTeX/commit/87a2b304aff601ad1c3d930d47d6833d123ad210">87a2b30</a>),
closes <a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4204">#4204</a> <a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4218">#4218</a></li>
</ul>
<h2>v0.18.0</h2>
<h1><a
href="https://github.com/KaTeX/KaTeX/compare/v0.17.0...v0.18.0">0.18.0</a>
(2026-07-17)</h1>
<h3>Features</h3>
<ul>
<li>prefix css classes (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4229">#4229</a>)
(<a
href="https://github.com/KaTeX/KaTeX/commit/6f5c44f69bae0703877a3a8d934e20c47bbbbc32">6f5c44f</a>)</li>
</ul>
<h3>BREAKING CHANGES</h3>
<ul>
<li>users who apply custom styles or have allowlists targeting KaTeX's
internal classes must update their selectors.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/KaTeX/KaTeX/blob/main/CHANGELOG.md">katex's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/KaTeX/KaTeX/compare/v0.18.0...v0.18.1">0.18.1</a>
(2026-07-19)</h2>
<h3>Bug Fixes</h3>
<ul>
<li><strong>htmlData:</strong> allow escaped commas in \htmlData (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4236">#4236</a>)
(<a
href="https://github.com/KaTeX/KaTeX/commit/87a2b304aff601ad1c3d930d47d6833d123ad210">87a2b30</a>),
closes <a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4204">#4204</a> <a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4218">#4218</a></li>
</ul>
<h1><a
href="https://github.com/KaTeX/KaTeX/compare/v0.17.0...v0.18.0">0.18.0</a>
(2026-07-17)</h1>
<h3>Features</h3>
<ul>
<li>prefix css classes (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4229">#4229</a>)
(<a
href="https://github.com/KaTeX/KaTeX/commit/6f5c44f69bae0703877a3a8d934e20c47bbbbc32">6f5c44f</a>)</li>
</ul>
<h3>BREAKING CHANGES</h3>
<ul>
<li>users who apply custom styles or have allowlists targeting KaTeX's
internal classes must update their selectors.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/cdf479f6749fd2a04c2ccad9be0ead2ac26c33d2"><code>cdf479f</code></a>
chore(release): 0.18.1 [ci skip]</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/87a2b304aff601ad1c3d930d47d6833d123ad210"><code>87a2b30</code></a>
fix(htmlData): allow escaped commas in \htmlData (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4236">#4236</a>)</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/2318066babab2b1729bba87c983b4fdbdb206eb4"><code>2318066</code></a>
chore(deps): bump codecov/codecov-action from 6 to 7 (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4227">#4227</a>)</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/3b5b6a0f3d9881e75876af4b83a84a4a0fc4d948"><code>3b5b6a0</code></a>
chore(deps): bump actions/checkout from 6 to 7 (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4232">#4232</a>)</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/4e9d31a103790b2fea8777fc209cdd1a1e72132d"><code>4e9d31a</code></a>
chore(deps): update dependency js-yaml to v4.2.0 [security] (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4244">#4244</a>)</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/b7ca8f09180d3383077bda89608be19242077d3e"><code>b7ca8f0</code></a>
chore(deps): update dependency webpack-dev-server to v5.2.5 [security]
(<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4242">#4242</a>)</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/bf1a59fc2c19b12b50d9b627f9f530b89ef46c47"><code>bf1a59f</code></a>
chore: use pixel diff as fallback for byte-to-byte (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4245">#4245</a>)</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/4d9d0ae03841943ac3ccc63ad5708e15c46b187e"><code>4d9d0ae</code></a>
chore(release): 0.18.0 [ci skip]</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/6f5c44f69bae0703877a3a8d934e20c47bbbbc32"><code>6f5c44f</code></a>
feat: prefix css classes (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4229">#4229</a>)</li>
<li><a
href="https://github.com/KaTeX/KaTeX/commit/2c6143a6dd7c168cef602c1e29f8add66f7fcc19"><code>2c6143a</code></a>
refactor: remove direct hasOwnProperty call (<a
href="https://redirect.github.com/KaTeX/KaTeX/issues/4230">#4230</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/KaTeX/KaTeX/compare/v0.17.0...v0.18.1">compare
view</a></li>
</ul>
</details>
<details>
<summary>Install script changes</summary>
<p>This version adds <code>prepare</code> script that runs during
installation. Review the package contents before updating.</p>
</details>
<br />


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website/package-lock.json

@@ -25,7 +25,7 @@
     "@docusaurus/theme-mermaid": "3.10.2",
     "@mdx-js/react": "^3.1.1",
     "clsx": "^2.0.0",
-    "katex": "^0.17.0",
+    "katex": "^0.18.1",
     "prism-react-renderer": "^2.3.0",
     "react": "^19.2.7",
     "react-dom": "^19.2.7",