test: Introduce custom test renderer

The new v14 version requires userEvent to be setup before being used.
By having a custom test renderer we will be able to do this once
for all tests.

test/test.utils.js

@@ -0,0 +1,11 @@
+import { render } from '@testing-library/react'
+
+export const customRender = (ui, options) => ({
+  ...render(ui, {
+    ...options,
+  }),
+})
+
+export * from '@testing-library/react'
+
+export { customRender as render }