deps(deps): bump katex from 0.16.25 to 0.16.27

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.16.25 to 0.16.27.
<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>v0.16.27</h2>
<h2><a href="https://github.com/KaTeX/KaTeX/compare/v0.16.26...v0.16.27">0.16.27</a> (2025-12-07)</h2>
<h3>Features</h3>
<ul>
<li>support equals sign and surrounding whitespace in \htmlData attribute values (<a href="https://redirect.github.com/KaTeX/KaTeX/issues/4112">#4112</a>) (<a href="https://github.com/KaTeX/KaTeX/commit/c77aaec00c766f5bb02e332a1dc416b82a65fe8f">c77aaec</a>)</li>
</ul>
<h2>v0.16.26</h2>
<h2><a href="https://github.com/KaTeX/KaTeX/compare/v0.16.25...v0.16.26">0.16.26</a> (2025-12-07)</h2>
<h3>Bug Fixes</h3>
<ul>
<li>\mathop followed by integral symbol (<a href="https://github.com/KaTeX/KaTeX/commit/6fbad18857351e4d2a88ed3e3348bd76caad9be3">6fbad18</a>)</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/v0.16.26...v0.16.27">0.16.27</a> (2025-12-07)</h2>
<h3>Features</h3>
<ul>
<li>support equals sign and surrounding whitespace in \htmlData attribute values (<a href="https://redirect.github.com/KaTeX/KaTeX/issues/4112">#4112</a>) (<a href="https://github.com/KaTeX/KaTeX/commit/c77aaec00c766f5bb02e332a1dc416b82a65fe8f">c77aaec</a>)</li>
</ul>
<h2><a href="https://github.com/KaTeX/KaTeX/compare/v0.16.25...v0.16.26">0.16.26</a> (2025-12-07)</h2>
<h3>Bug Fixes</h3>
<ul>
<li>\mathop followed by integral symbol (<a href="https://github.com/KaTeX/KaTeX/commit/6fbad18857351e4d2a88ed3e3348bd76caad9be3">6fbad18</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/KaTeX/KaTeX/commit/cc5eee50117495051bbd2646d32bd304b8fbe100"><code>cc5eee5</code></a> chore(release): 0.16.27 [ci skip]</li>
<li><a href="https://github.com/KaTeX/KaTeX/commit/c77aaec00c766f5bb02e332a1dc416b82a65fe8f"><code>c77aaec</code></a> feat: support equals sign and surrounding whitespace in \htmlData attribute v...</li>
<li><a href="https://github.com/KaTeX/KaTeX/commit/9151d5eece9121f5f92749a56ce3d4397b5f3a78"><code>9151d5e</code></a> chore(release): 0.16.26 [ci skip]</li>
<li><a href="https://github.com/KaTeX/KaTeX/commit/6fbad18857351e4d2a88ed3e3348bd76caad9be3"><code>6fbad18</code></a> fix: \mathop followed by integral symbol</li>
<li><a href="https://github.com/KaTeX/KaTeX/commit/785315c0f630f65347cac14b3ec72629cfe7631e"><code>785315c</code></a> chore(deps): update dependency js-yaml to v4.1.1 [security] (<a href="https://redirect.github.com/KaTeX/KaTeX/issues/4106">#4106</a>)</li>
<li>See full diff in <a href="https://github.com/KaTeX/KaTeX/compare/v0.16.25...v0.16.27">compare view</a></li>
</ul>
</details>
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