Fix uncurried external make for JSX V4

[mununki]

module E = {
  @react.component
  external make: (~x: string) => React.element = "default"
}

module EUncurried = {
  @react.component
  external make: (. ~x: string) => React.element = "default"
}

transformed to

module E = {
  type props<'x> = {
    x: 'x,
  }

  external make: React.componentLike<props<string>, React.element> = "default"
}

module EUncurried = {
  type props = {}

  external make: React.componentLike<props, (. ~x: string) => React.element> = "default"
}

The both outputs are expected to be same, but not.