i18n(zh-cn): Update dev-toolbar.mdx

[Nin3lee]

Description (required)

Update dev-toolbar.mdx

Related issues & labels (optional)

• 5.0.0 beta docs #9240
• Suggested label: i18n

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Tracked Files

File	Note
zh-cn/guides/dev-toolbar.mdx	Localization changed, will be marked as complete.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[liruifengv]

LGTM!