3: Animated values

Sheet.tsx

// Animated values
  const position = useSharedValue<SheetPositions>('minimised');
  const sheetHeight = useSharedValue(-minHeight);
  const navHeight = useSharedValue(0);

  const springConfig: WithSpringConfig = {
    damping: 50,
    mass: 0.3,
    stiffness: 120,
    overshootClamping: true,
    restSpeedThreshold: 0.3,
    restDisplacementThreshold: 0.3,
  };

  const DRAG_BUFFER = 40;