make reported user nullable

src/lib/utils.ts

@@ -0,0 +1,18 @@
+import { env } from '$env/dynamic/public';
+
+export async function usernameSuggestions(
+	username: string
+): Promise<{ name: string; value: string }[]> {
+	const response = await fetch(`${env.PUBLIC_BASE_PATH}/admin/users`, {
+		method: 'POST',
+		body: JSON.stringify({
+			limit: 6,
+			search: username,
+			slim: true
+		})
+	});
+	const json: { username: string; uuid: string }[] = await response.json();
+	return json.map((v) => {
+		return { name: v.username, value: v.uuid };
+	});
+}