add device mode sample (c-sharp) in devtool page

[namilkimfree]

add device mode sample (c-sharp) in devtool page

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Description

Motivation and Context

Types of changes

• Change to the site (I am attaching a screenshot showing the before and after)
• 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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All committers have signed the CLA.

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[diemol]

@namilkimfree, we have updated our site, could you please update the files now in this location?
https://github.com/SeleniumHQ/seleniumhq.github.io/tree/dev/website_and_docs/content/documentation/support_packages

Then we can merge this. Thanks!

[harsha509]

Hi @namilkimfree,

Thanks for the PR.

As the PR went stale, the code snippet is landed with this commit !

Thanks,
Harsha