HarmonyOS鸿蒙Next中使用什么属性可以实现tabBar位置紧挨着的效果？

参考下方代码：

@Entry
@Component
struct Index1 {
  private tabsController: TabsController = new TabsController()
  @State currentIndex: number = 0;
  @Builder
  TabBarBuilder(title: string, targetIndex: number) {
    Column(){
      Text(title).fontWeight(targetIndex === this.currentIndex ? FontWeight.Bold : FontWeight.Normal).margin({ left: 10, right: 10 })
        .onClick(() => {
          this.tabsController.changeIndex(targetIndex)
        })
      Text()
        .width(30)
        .height(2)
        .backgroundColor(Color.Blue)
        .margin({top:5})
        .visibility(targetIndex === this.currentIndex ? Visibility.Visible : Visibility.Hidden)
    }
  }
  build() {
    Row() {
      Column() {
        Flex({ justifyContent:FlexAlign.Center }) {
          this.TabBarBuilder('医生二维码', 0)
          this.TabBarBuilder('团队二维码', 1)
        }
        Tabs({ barPosition: BarPosition.End, controller: this.tabsController }) {
          TabContent() {
            Text("医生二维码页面")
          }
          TabContent() {
            Text("团队二维码")
          }
        }.onChange((index: number) => {
          this.currentIndex = index;
        })
      }
    }
  }
}