chore(deps-dev): bump typescript from 5.9.3 to 6.0.2 in /frontend

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.3 to 6.0.2.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v5.9.3...v6.0.2)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 6.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

frontend/package-lock.json

@@ -28,7 +28,7 @@
     "svelte-eslint-parser": "^1.6.0",
     "svelte-range-slider-pips": "^4.1.0",
     "tslib": "^2.6.0",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.2",
     "vite": "^6.1.7",
     "vite-plugin-pwa": "^1.0.3"
   },