Zifa downloader helper 2.0.0

The installer downloads separate executables from their official distributors.
Their licenses apply to those executables and remain with the installation.

Node.js (MIT and included third-party notices)
https://nodejs.org/en/about/previous-releases
https://github.com/nodejs/node/blob/main/LICENSE

yt-dlp official Windows executable (combined executable GPLv3+; see release licenses)
https://github.com/yt-dlp/yt-dlp
https://github.com/yt-dlp/yt-dlp/blob/master/LICENSE

FFmpeg yt-dlp builds (GPL build; exact configuration shown by ffmpeg -version)
https://github.com/yt-dlp/FFmpeg-Builds
https://ffmpeg.org/legal.html

No cookies or YouTube account credentials are requested. Only download content
you are authorized to download. The helper does not enable private, paid or
DRM-restricted downloads, and does not guarantee YouTube availability.
