chore(deps): update dependency @sveltejs/kit to v2.21.1

Author: renovate[bot]

docs-site/package.json

@@ -20,7 +20,7 @@
 		"@iconify-json/mdi": "1.2.3",
 		"@nubolab-ffwd/svelte-fluent": "workspace:^",
 		"@sveltejs/adapter-static": "3.0.8",
-		"@sveltejs/kit": "2.20.6",
+		"@sveltejs/kit": "2.21.1",
 		"@sveltejs/package": "2.3.11",
 		"@sveltejs/vite-plugin-svelte": "5.0.3",
 		"@types/hast": "3.0.4",