fix(tokens): correct --spectrum-cjk-font to reference --spectrum-cjk-font-family-stack

[byteakp]

This PR fixes a bug where the --spectrum-cjk-font variable incorrectly referenced --spectrum-code-font-family-stack. It now correctly points to --spectrum-cjk-font-family-stack, which is intended for CJK (Chinese, Japanese, Korean) font rendering.

Related Issue: Fixes #3793

Changes Made:

• Updated --spectrum-cjk-font in tokens/custom/global-vars.css to reference the correct font family stack
• Added changeset for proper version management

## How and where has this been tested?

• @byteakp - Verified that the --spectrum-cjk-font now correctly inherits the CJK font stack
• @byteakp - Ensured no visual regressions occur in components using this variable
• @byteakp - Confirmed variable resolves correctly in the compiled CSS

## Validation steps

• @byteakp - Opened components using --spectrum-cjk-font and validated font stack reflects CJK-specific fonts
• @byteakp - Confirmed overall styling remains consistent

## Regression testing

Validate:

• @byteakp - At least two documentation pages render correctly and are responsive
• @byteakp - All components continue to load and render properly
• VRTs have been run and reviewed (pending reviewer approval)

## To-do list

• I have read the contribution guidelines
• I have updated relevant storybook stories and templates (N/A for this change)

[changeset-bot]

🦋 Changeset detected

Latest commit: c75ef92

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@spectrum-css/tokens	Patch
@spectrum-css/preview	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[byteakp]

Hi @castastrophe, I've incorporated all requested changes and added a Changeset as advised. The font reference has been corrected to --spectrum-cjk-font-family-stack, tested across components, and regression checks look good. Please review when you get a chance—thanks again!

[castastrophe]

I've added the unrelated code as suggestions in the PR and I can batch update those so we can get this PR merged for you.

[castastrophe]

A note, we expect the checks to fail here because it's not set up to run against branches in other scopes (only forks), but I've validated this locally.

[byteakp]

Hey @castastrophe —
Thanks a lot for helping get this PR across the line! Learned a lot through your suggestions 🙌

Would love to keep contributing — let me know if there’s anything else I could help with next 😊

Cheers!
@byteakp