ui, server handling improvements

src/routes/clients/[id]/+page.ts

@@ -1,10 +1,15 @@
 import type { PageLoad } from './$types';
 import type { ClientDetails } from '$lib/types/clients';
 import { clientDetailsToConfig } from '$lib/clients';
+import { error } from '@sveltejs/kit';
 
 export const load: PageLoad = async ({ fetch, params }) => {
 	const res = await fetch(`/api/clients/${params.id}`);
-	const client = (await res.json()) as ClientDetails;
+	const resJson = await res.json();
+	if (!res.ok) {
+		return error(res.status, resJson['message']);
+	}
+	const client = resJson as ClientDetails;
 	const config = clientDetailsToConfig(client);
 
 	return { client, config };