Icon has been mocked because we test here AppIcon and not Icon.

Last test `renders provided fallbackIcon on img error` has been deleted because it is very close to `renders provided fallbackIcon when fetch error occurs` and it was testing internals which we do not test with react-testing-library

I added onChange attribute to avoid test failing because "Warning:
Failed prop type: You provided a `value` prop to a form field without
an `onChange` handler. This will render a read-only field. If the
field should be mutable use `defaultValue`. Otherwise, set either
`onChange` or `readOnly`."

I kept the snapshot here because it works well like this and it would take time to refactor for little benefits.

Almost 100% rewritten because we are testing internals (and for a good reason here because it has no UI) and it is very different to test internal in enzyme and react-testing-library.

It is just a single snapshot that has no really purpose.

Passing props to the input is not a react-testing-library kind of tests.