HarmonyOS Tabs组件中TabBar不能完全贴合

参考示例：

@Builder
TabBuilder(text: string, img1: Resource|string, img2: Resource|string, index: number) {
  Stack() {
    Image(this.actionIndex === index ? img1 : img2)
      .width('100%')
      .pixelRound({
        start:PixelRoundCalcPolicy.FORCE_FLOOR,
        end:PixelRoundCalcPolicy.FORCE_CEIL,
      })
    Text(text)
      .height(21)
      .fontFamily('PingFangSC-Medium')
      .fontSize(15)
      .fontColor('#6c4949')
      .fontWeight(500)
  }
}