fix: update VS Code Web URL to use stable version

[Kanchan-Microsoft]

Purpose

This pull request updates the deployment badges for Visual Studio Code Web in both the README.md and the deployment guide to use the new vscode.dev/azure URL format instead of the previous insiders.vscode.dev/azure link. This ensures users are directed to the correct and current web-based VS Code experience for deployment.

Deployment documentation updates:

• Updated the Visual Studio Code Web badge link in README.md to use the new vscode.dev/azure URL for improved reliability and future compatibility.
• Updated the Visual Studio Code Web badge link in docs/DeploymentGuide.md to match the new vscode.dev/azure format, ensuring consistency across documentation.

Does this introduce a breaking change?

• Yes
• No

Golden Path Validation

• I have tested the primary workflows (the "golden path") to ensure they function correctly without errors.

Deployment Validation

• I have validated the deployment process successfully and all services are running as expected with this change.

What to Check

Verify that the following are valid

• ...

Other Information

[github-actions]

🎉 This PR is included in version 1.11.3 🎉

The release is available on GitHub release

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