chore(deps-dev): bump @rgossiaux/svelte-headlessui in /frontend

Bumps [@rgossiaux/svelte-headlessui](https://github.com/rgossiaux/svelte-headlessui) from 1.0.2 to 2.0.0.
- [Release notes](https://github.com/rgossiaux/svelte-headlessui/releases)
- [Commits](rgossiaux/svelte-headlessui@v1.0.2...v2.0.0)

---
updated-dependencies:
- dependency-name: "@rgossiaux/svelte-headlessui"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

frontend/package.json

@@ -18,7 +18,7 @@
 	"devDependencies": {
 		"@floating-ui/core": "^1.3.1",
 		"@playwright/test": "^1.34.3",
-		"@rgossiaux/svelte-headlessui": "^1.0.2",
+		"@rgossiaux/svelte-headlessui": "^2.0.0",
 		"@sveltejs/adapter-static": "^2.0.2",
 		"@sveltejs/kit": "^1.20.1",
 		"@sveltejs/package": "^2.0.0",