Setting dismissType onSwipe also allows toast to be closed by tapping on it

[vpohrebniakov-zco]

A bug was found in the _buildDismissibleChild() method of top_snack_bar.dart. Here, for DismissType.onSwipe, the onTap also reverses the animation:

      case DismissType.onSwipe:
        var childWidget = widget.child;
        for (final direction in widget.dismissDirections) {
          childWidget = TapBounceContainer(
            onTap: () {
              widget.onTap?.call();
              if (!widget.persistent && mounted) {
                _animationController.reverse();
              }
            },
            child: Dismissible(
              direction: direction,
              key: UniqueKey(),
              dismissThresholds: const {DismissDirection.up: 0.2},
              confirmDismiss: (direction) async {
                if (!widget.persistent && mounted) {
                  if (direction == DismissDirection.down) {
                    await _animationController.reverse();
                  } else {
                    _animationController.reset();
                  }
                }
                return false;
              },
              child: childWidget,
            ),
          );
        }
        return childWidget;