Fast Refresh: "Anonymous arrow functions cause Fast Refresh to not preserve local component state."

React's new Fast Refresh wants the components exported by `react-svg-loader` to have a name. Here's the full error:

```
Anonymous arrow functions cause Fast Refresh to not preserve local component state.
Please add a name to your function, for example:

Before
export default () => <div />;

After
const Named = () => <div />;
export default Named;
```