bug: `showBadge` not respected when  `badgeAnimation` is fading on loop

## Environment

**Package version:**  3.1.1
**Platform:** Android (did not check others)
**Device information:**  not relevant

## Description

Setting badgeAnimation to loop fade `BadgeAnimation.fade(animationDuration: Duration(milliseconds: 2000), loopAnimation: true)`, causes `showBadge` to be ignored. (Even if `showBadge` is false, the badge still flashes)
