Scrollbar: Fixed infinite execution of the scrollbar component componentDidUpdate hook function

[rookie125]

…Update hook function

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Changes in this pull request

• 修复了滚动条componentDidUpdate钩子函数的无限执行问题

[jdsandifer]

@rookie125 It's been a while since you started this PR - are you still interested in working on this? It looks like the branch needs to be updated and an ESLint error needs to be fixed before this can be merged (it says there's a dependency loop).