build(deps-dev): Bump sveltekit-superforms from 2.27.4 to 2.28.1

Bumps [sveltekit-superforms](https://github.com/ciscoheat/sveltekit-superforms) from 2.27.4 to 2.28.1.
- [Release notes](https://github.com/ciscoheat/sveltekit-superforms/releases)
- [Changelog](https://github.com/ciscoheat/sveltekit-superforms/blob/main/CHANGELOG.md)
- [Commits](ciscoheat/sveltekit-superforms@v2.27.4...v2.28.1)

---
updated-dependencies:
- dependency-name: sveltekit-superforms
  dependency-version: 2.28.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -63,7 +63,7 @@
     "svelte-5-ui-lib": "0.12.2",
     "svelte-check": "4.3.3",
     "svelte-meta-tags": "4.5.0",
-    "sveltekit-superforms": "2.27.4",
+    "sveltekit-superforms": "2.28.1",
     "tslib": "2.8.1",
     "typescript": "5.9.3",
     "vite": "7.2.2",