[Style Guide] Adding products frontmatter to all visible examples

[Oxyjun]

Summary

Screenshots (optional)

Documentation checklist

• Is there a changelog entry (guidelines)? If you don't add one for something awesome and new (however small) — how will our customers find out? Changelogs are automatically posted to RSS feeds, the Discord, and X.
• The change adheres to the documentation style guide.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

[github-actions]

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

Pattern	Owners
/src/content/docs/style-guide/	@dcpena, @cloudflare/pcx-technical-writing
/src/content/docs/workers/	@cloudflare/workers-docs, @GregBrimble, @irvinebroque, @mikenomitch, @korinne, @WalshyDev, @cloudflare/deploy-config, @cloudflare/pcx-technical-writing, @cloudflare/wrangler, @mattietk, @cloudflare/dev-plat-leads

[github-actions]

Preview URL: https://11c4ef0e.preview.developers.cloudflare.com
Preview Branch URL: https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/style-guide/components/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/components/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/reference-architecture-diagram/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/reference-architecture-diagram/
https://developers.cloudflare.com/style-guide/frontmatter/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/frontmatter/
https://developers.cloudflare.com/style-guide/how-we-docs/how-we-ai/prompt-templates/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/how-we-docs/how-we-ai/prompt-templates/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/how-to/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/how-to/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/3rd-party-integration-guide/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/3rd-party-integration-guide/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/changelog/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/changelog/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/concept/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/concept/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/configuration/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/configuration/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/design-guide/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/design-guide/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/get-started/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/get-started/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/navigation/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/navigation/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/overview/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/overview/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/reference-architecture/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/reference-architecture/
https://developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/reference/	https://jun-style-guide-frontmatter-products.preview.developers.cloudflare.com/style-guide/documentation-content-strategy/content-types/reference/