Feature request: control sound volume of notifications

[jamminjames]

There should be a way to control the volume of the sound notifications, eg, the sound to notify admin when a user starts a chat or replies, etc.

The current level can be too loud (my case) or too quiet, depending on the setting of the computer being used. Controlling it with the main volume on the computer is not ideal, as that is set as it is for other reasons.

A reply in the LHC forum said a change could be made to the code at line 149 in lh.js to accomplish this:
this.audio = typeof window.Audio !== "undefined" ? new Audio() : null;

I'm not a developer, but since this is an open source app, I thought I'd put this feature request out there.

Thanks!