docs: update zh-cn translation of file_upload

[jasonren0403]

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Description

translate file_upload page to zh-cn

Motivation and Context

more localized page

Types of changes

• Change to the site (I have double-checked the Netlify deployment, and my changes look good)
• Code example added (and I also added the example to all translated languages)
• Improved translation
• Added new translation (and I also added a notice to each document missing translation)

Checklist

• I have read the contributing document.
• I have used hugo to render the site/docs locally and I am sure it works.

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PR Type

Documentation

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Description

• Updated the Chinese translation for the file upload documentation.

• Improved clarity and localization of the content.

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Changes walkthrough 📝

	Relevant files
Documentation	file_upload.zh-cn.md Update and improve Chinese translation for file upload      website_and_docs/content/documentation/webdriver/elements/file_upload.zh-cn.md Translated English content into Chinese for file upload documentation. Enhanced localization by rephrasing sentences for clarity. +3/-3

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[netlify]

👷 Deploy request for selenium-dev pending review.

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Name	Link
🔨 Latest commit	d2fe41f

[qodo-merge-pro]

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[qodo-merge-pro]

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[harsha509]

Thank you @jasonren0403 !