Merged PR 170: Add new eslint rules

- naming-convention
- prefer-arrow-callback
- func-style
- import/no-default-export

src/utils/test-utils.tsx

@@ -7,14 +7,15 @@ afterEach(() => {
   cleanup();
 });
 
-const customRender = (ui: React.ReactElement, options = {}): RenderResult =>
-  render(ui, {
+function CustomRender(ui: React.ReactElement, options = {}): RenderResult {
+  return render(ui, {
     // wrap provider(s) here if needed
     wrapper: ({ children }) => children,
     ...options
   });
+}
 
 export * from '@testing-library/react';
 export { default as userEvent } from '@testing-library/user-event';
 // override render export
-export { customRender as render };
+export { CustomRender as render };