`withForm` and `withFieldGroup` types for `render` and `props`

interface ComponentPropsInterface {
  label?: string
}

type ComponentPropsType = {
  label?: string
}

// works
withForm({
  props: {} as ComponentPropsInterface
})

// Index signature for type 'string' is missing in type 'Props'.
withFieldGroup({
  props: {} as ComponentPropsInterface
})

// works
withFieldGroup({
  props: {} as ComponentPropsType
})

// also works
withFieldGroup({
  props: {} as { label?: string }
})

// Type 'null' is not assignable to type 'ReactElement<any, any>'.
withForm({
  render: function Render() {
    if (condition) return null

    return <div />
  },
})