feat: allow spreading in reflect

[aspirisen]

I add to the first argument in reflect method a lenses dictionary. It will allow you to use ...spread if you want to leave other props as is.

function Component({ lens }: { lens: Lens<{ firstName: string; lastName: string; age: number }> }) {
  return (
    <PersonForm
      lens={lens.reflect(({ firstName, lastName, ...rest }) => ({
        ...rest,
        name: firstName,
        surname: lastName,
      }))}
    />
  );
}

function PersonForm({ lens }: { lens: Lens<{ name: string; surname: string; age: number }> }) {
  //...
}

In runtime is use proxy to call focus method, so spread will not actually add the properties, but that will help with correct typescript typings

[bluebill1049]

LGTM

[github-actions]

🎉 This PR is included in version 0.4.0 🎉

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