Improved music system and less bugs! [1.2 Update]

1.2 Update: Bug fixes:

• Maintaining Output (and with that, Speed!) now consumes fuel at the normal rate
• Idle animations no longer play when actively Repairing something
• Music intensity logic reworked to climb faster.
• Music no longer should start randomly overlapping on repeat playthroughs.
• Output-Mode now automatically switches to the Maintaining state when the output is at 100%.
• Various optimizations