[Gateway] Proxy/precedence flowchart partial

[maxvp]

PCX-18163

[hyperlint-ai]

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PR Change Summary

Updated the Gateway proxy documentation to enhance clarity and functionality.

• Added a new Render component for the TCP flowchart visualization.
• Improved instructions for configuring ICMP proxy settings.
• Clarified steps for determining user group IDs and updating ping group range.

Modified Files

• src/content/docs/cloudflare-one/policies/gateway/proxy.mdx

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[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/docs/cloudflare-one/policies/gateway/	@maxvp, @cloudflare/pcx-technical-writing
*	@cloudflare/pcx-technical-writing

[github-actions]

Preview URL: https://eee8e0cd.preview.developers.cloudflare.com
Preview Branch URL: https://max-gw-merge-flowcharts.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/cloudflare-one/policies/gateway/proxy/	https://max-gw-merge-flowcharts.preview.developers.cloudflare.com/cloudflare-one/policies/gateway/proxy/