feat: adopt sveltekit-superforms (resolves #8)

package.json

@@ -44,9 +44,11 @@
 		"prettier-plugin-svelte": "^3.4.0",
 		"svelte": "^5.43.14",
 		"svelte-check": "^4.3.4",
+		"sveltekit-superforms": "^2.30.1",
 		"tailwindcss": "^4.1.17",
 		"typescript": "^5.9.3",
 		"typescript-eslint": "^8.47.0",
+		"valibot": "^1.1.0",
 		"vite": "^7.2.4"
 	},
 	"dependencies": {
@@ -54,7 +56,6 @@
 		"@sveltejs/adapter-auto": "^7.0.0",
 		"postgres": "^3.4.7",
 		"sanitize-html": "^2.17.0",
-		"tailwind-merge": "^3.4.0",
-		"valibot": "^1.1.0"
+		"tailwind-merge": "^3.4.0"
 	}
 }