doc: add content for Blob.bytes()
This fixes https://github.com/nodejs/node/issues/54105, and adds missing docstring for Blob.bytes()
as well.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This fixes https://github.com/nodejs/node/issues/54105, and adds missing docstring for Blob.bytes()
as well.