Fixed: Synced values not consistent across all time signatures

- Added: Mix Knob Parameter
- Added: 5 new presets
- Improved: GUI elements
- Fixed: Pan behavior

- Improved: Memory Usage
- Improved: GUI Contrast

- Added: Graphics Controls (Brightness and Contrast)
- Improved: Contrast of Oversample UI
- Improved: Preset browsing avoids loud clicks
- Improved: Mode Knob scrolling with Mouse Wheel
- Fixed: Longer synced values issue with 16x oversample
- Fixed: Mono Sum not working correctly
- Fixed: Oversample parameter not locking