feat: re-introduce regression testing suite with pnpm

src/tests/setup.ts

@@ -0,0 +1,10 @@
+import '@testing-library/jest-dom';
+import { expect, afterEach } from 'vitest';
+import { cleanup } from '@testing-library/react';
+import * as matchers from '@testing-library/jest-dom/matchers';
+
+expect.extend(matchers);
+
+afterEach(() => {
+    cleanup();
+});