build(deps-dev): bump typescript from 5.9.3 to 6.0.3 in /frontend

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.3 to 6.0.3.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](https://github.com/microsoft/TypeScript/compare/v5.9.3...v6.0.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 6.0.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

frontend/package.json

@@ -75,7 +75,7 @@
     "autoprefixer": "^10.5.0",
     "postcss": "^8.5",
     "tailwindcss": "^3.4.17",
-    "typescript": "^5"
+    "typescript": "^6"
   },
   "repository": "https://github.com/th30d4y/OpenLearnX.git",
   "publishConfig": {