Bug Fixes

actually stop mp3/ogg, and explicitly stop title music c3f7ec46f

The titlescreen music would restart in the file select screen if the Sound dialog was opened then closed. This was because the volume was set to 0 to fade out, but it was never actually stopped.

But also, due to a bug ogg and mp3 formats were really just "paused" when told to stop, so setting the volume afterwards would result in resuming music that was meant to be over.
ambient/background sfx volume not being set 556124969

The recent removal of "digi_volume" made all background sfx play at full volume. Fixed that.

Additionally, fixed a bug in the sound dialog what skipped the first sfx when adjusting currently playing sounds to the new volume. That first sfx is often a background sfx.

CI