Editor de texto primer intento

frontend/test-utils/index.ts

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+import userEvent from '@testing-library/user-event';
+
+export * from '@testing-library/react';
+export { render } from './render';
+export { userEvent };

frontend/test-utils/render.tsx

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+import { render as testingLibraryRender } from '@testing-library/react';
+import { MantineProvider } from '@mantine/core';
+import { theme } from '../src/theme';
+
+export function render(ui: React.ReactNode) {
+  return testingLibraryRender(ui, {
+    wrapper: ({ children }: { children: React.ReactNode }) => (
+      <MantineProvider theme={theme} env="test">
+        {children}
+      </MantineProvider>
+    ),
+  });
+}