BREAKING CHANGE: NodeJS v18+ is required when using node due to the use of global `fetch`
BREAKING CHANGE: The raw method of REST now returns a web compatible `Respone` object.
BREAKING CHANGE: The `parseResponse` utility method has been updated to operate on a web compatible `Response` object.
BREAKING CHANGE: Many underlying internals have changed, some of which were exported.
BREAKING CHANGE: `DefaultRestOptions` used to contain a default `agent`, which is now set to `null` instead.
* docs: updated ws's readme to include optional packages
- added optional packages to the README.md
- added an example on how to add a listener to the ws manager, in the README.md
* docs: changed "addEventListener" to "on" in ws's readme
changed "addEventListener" to "on" in @discord.js/ws README.md
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>