Bump shiki from 1.16.3 to 1.18.0 (#82)

Bumps [shiki](https://github.com/shikijs/shiki/tree/HEAD/packages/shiki) from 1.16.3 to 1.18.0.
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Changelog](https://github.com/shikijs/shiki/blob/main/CHANGELOG.md)
- [Commits](https://github.com/shikijs/shiki/commits/v1.18.0/packages/shiki)

---
updated-dependencies:
- dependency-name: shiki
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -25,7 +25,7 @@
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "scratchblocks": "^3.6.4",
-    "shiki": "^1.16.3",
+    "shiki": "^1.18.0",
     "tailwind-merge": "^2.5.2",
     "tailwindcss": "^3.4.13",
     "zod": "^3.23.8",