[C4Platforms, DNS] Update Shopify guide

[pedrosousa]

Summary

Addresses PCX-14320.

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PR Change Summary

Updated the Shopify guide to include new configurations and clarifications regarding O2O routing.

• Added information about O2O routing configurations specific to Shopify.
• Clarified the process for enabling O2O on Cloudflare zones.
• Included a note about CNAME records enabling O2O routing for Shopify.

Modified Files

• src/content/docs/cloudflare-for-platforms/cloudflare-for-saas/saas-customers/provider-guides/shopify.mdx
• src/content/docs/dns/manage-dns-records/reference/dns-record-types.mdx

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[windsurf-bot]

Looks good to me 🤙

[github-actions]

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

Pattern	Owners
/src/assets/images/	@cloudflare/pm-changelogs, @cloudflare/pcx-technical-writing
/src/content/docs/cloudflare-for-platforms/cloudflare-for-saas/	@RebeccaTamachiro, @cloudflare/pcx-technical-writing
/src/content/docs/dns/	@RebeccaTamachiro, @cloudflare/pcx-technical-writing

[github-actions]

Preview URL: https://1508fbba.preview.developers.cloudflare.com
Preview Branch URL: https://pedro-pcx-14320-c4plat-update-shopify.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/cloudflare-for-platforms/cloudflare-for-saas/saas-customers/provider-guides/shopify/	https://pedro-pcx-14320-c4plat-update-shopify.preview.developers.cloudflare.com/cloudflare-for-platforms/cloudflare-for-saas/saas-customers/provider-guides/shopify/
https://developers.cloudflare.com/dns/manage-dns-records/reference/dns-record-types/	https://pedro-pcx-14320-c4plat-update-shopify.preview.developers.cloudflare.com/dns/manage-dns-records/reference/dns-record-types/