src: add include for standalone compile

- Include algorithm header in js_native_api_v8.cc since std::min
  requires it.
- Add comments to js_native_api_v8_internals.h for NAPI_VERSION

PR-URL: https://github.com/nodejs/node/pull/24498


Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gabriel Schulhof <gabriel.schulhof@intel.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>