build(deps-dev): bump typescript from 5.9.3 to 7.0.2 in /frontend

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.3 to 7.0.2.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](https://github.com/microsoft/TypeScript/commits)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 7.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

frontend/package.json

@@ -31,7 +31,7 @@
     "svelte": "^5.1.0",
     "svelte-check": "^4.0.0",
     "tailwindcss": "^4.0.0",
-    "typescript": "^5.6.0",
+    "typescript": "^7.0.2",
     "typescript-eslint": "^8.14.0",
     "vite": "^5.4.0",
     "vitest": "^2.1.0"