Wrong licence in package.json and missing attribution in distributed files

[TheOneric]

Currently SubtitlesOctopus declares the wrong licence in its package.json (mostly relevant for npm releases I assume) as the binaries also include other libraries.
Additionaly JSO also falls short of properly crediting the authors of bundled libraries, which is also violates the licences of said bundled libraries (relevant for all binary releases/distributions) — and even JSO's own licence.

Afai understand subtitles-octopus.js will always accompany any JSO binaries distributed (meaning both for stuff we release via GHA artificats and on npm, and what end users will get served from a server). If that's correct adding the attribution and copyright notices to the distributed version of subtitles-octopus.js, seems like a good option.

This is a blocker for a new release.