Fix ESLint errors

tests/unit/QuoteBlock.test.jsx

@@ -1,5 +1,4 @@
 import { render, screen, cleanup } from "@testing-library/react";
-import userEvent from "@testing-library/user-event";
 import { vi, describe, test, expect, afterEach } from "vitest";
 import QuoteBlock from "../../app/components/QuoteBlock";