i18n(zh-tw): update cms overview and i18n keys

[hank00111]

Description (required)

Update guides/cms/index.mdx and zh-TW.yml to sync with the current English source.

• Add missing FeaturedCMSGuidesNav section to cms overview
• Add cms.featuredSubheading and cms.allSubheading i18n keys

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Tracked Files

File	Note
zh-tw/guides/cms/index.mdx	Localization changed, will be marked as complete.
src/content/i18n/zh-TW.yml	Localization changed, will be marked as complete.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[Copilot]

Pull request overview

Updates Traditional Chinese (zh-TW) CMS documentation and locale strings to stay in sync with the current English CMS overview structure and shared CMS navigation labels used across CMS guide pages.

Changes:

• Added the “Featured CMS partners” section to the zh-TW CMS overview page, including the FeaturedCMSGuidesNav component.
• Added new zh-TW i18n keys for CMS navigation subheadings: cms.featuredSubheading and cms.allSubheading.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/content/i18n/zh-TW.yml	Adds missing CMS subheading translation keys used by shared CMS navigation UI.
src/content/docs/zh-tw/guides/cms/index.mdx	Mirrors the English CMS overview by adding the featured CMS partners section and component.

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[sarah11918]

Hi! Thank you for this PR to update, but we are in a docs freeze until we release v6 docs and we are no longer updating v5 docs.

I am closing this PR, but hope you will contribute this to our new v6 docs after the next relase!!