Refactor Rhapsode to use new HURL APIs and more leniantly handle MIMEtypes.

Output audio cues in live speech.

Turned out I was overcomplicating things, all I needed to do was use file paths not URIs.
eSpeak NG handled it from there.

Upload Types modules, & useragent stylesheet with audio cues.

Prevent websites (and userstyles) from overriding the link audio cue.

Package sound effects for links and bulletpoints.

Feel free to suggest better ones.