merge method

@override FlyBreakpointToken merge(FlyToken<double> other)

Merge another token into this one (right side wins)

Implementation

@override
FlyBreakpointToken merge(FlyToken<double> other) {
  if (other is! FlyBreakpointToken) return this;

  return copyWith(
    sm: other.sm,
    md: other.md,
    lg: other.lg,
    xl: other.xl,
    xl2: other.xl2,
    extras: {...extras, ...other.extras},
  );
}