build(deps-dev): bump svelte from 4.2.18 to 5.1.6 in /web

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 4.2.18 to 5.1.6.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/main/packages/svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/commits/svelte@5.1.6/packages/svelte)

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

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

web/package.json

@@ -16,7 +16,7 @@
     "@sveltejs/kit": "^2.5.21",
     "@types/cookie": "^0.6.0",
     "@typescript-eslint/eslint-plugin": "^8.12.2",
-    "svelte": "^4.2.19",
+    "svelte": "^5.1.6",
     "svelte-check": "^3.8.5",
     "svelte-preprocess": "^6.0.2",
     "tslib": "^2.6.3",