fix: adjust scrollbar style in pageWrapper container to prevent it from obscuring content area

[Aaron-zon]

Proposed changes

adjust scrollbar style in pageWrapper container to prevent it from obscuring content area

Types of changes

What types of changes does your code introduce?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Linked Issues

#21

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[kirklin]

感谢你的贡献。

关于频繁开关PR的问题：一个PR中有多个提交是完全可以接受的。你不需要为你的更改进行rebase或force push。我们通常会在合并时将提交合并为一个提交。
kirklin/contribute

Thanks for your contribution and for addressing the feedback. We appreciate your effort in refining the pull request.

Regarding the frequency of opening and closing PRs, it's perfectly fine to have multiple commits within a single PR. You don't need to rebase or force push for your changes. We typically squash the commits into one commit when merging.

[Aaron-zon]

好的，没做过这种操作，谢谢你的提醒