Bump typescript from 5.8.2 to 5.9.3 in /client

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.8.2 to 5.9.3.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v5.8.2...v5.9.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 5.9.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

client/package-lock.json

@@ -19,7 +19,7 @@
     "@tailwindcss/vite": "^4.1.12",
     "astro": "^5.15.1",
     "svelte": "^5.23.0",
-    "typescript": "^5.8.2"
+    "typescript": "^5.9.3"
   },
   "devDependencies": {
     "@playwright/test": "^1.56.1",