fix: 修复选项卡组件在头部位置居中时, 无法滚动到第一个tab close #5071

[wywppkd]

What this PR does / why we need it?

修复了选项卡组件 nav 无法滚动到第一个 tab1 的 bug

Summary of your change

使用 margin 代替 flex 实现选项卡组件头部左中右对齐, 避免 nav 无法滚动 bug

Please indicate you've done the following:

• [ ] Made sure tests are passing and test coverage is added if needed.
• [ ] Made sure commit message follow the rule of Conventional Commits specification.
• [ ] Considered the docs impact and opened a new docs issue or PR with docs changes if needed.