fix: correct motion mixin quotes and productive-heading-02 capitalization in SCSS snippets

[Yashrajsingh2001]

SCSS Code Snippets Review

Critical Errors

1. Line 220: Missing quotes in motion mixin

"body": "@include motion(entrance, 'expressive')"

Issue: entrance should be quoted as 'entrance'
Should be: "body": "@include motion('entrance', 'expressive')"

2. Line 328: Incorrect capitalization

"body": "@include type-style('productive-Heading-02')"

Issue: Heading has capital H, should be lowercase
Should be: "body": "@include type-style('productive-heading-02')"

Summary

Total Issues Found: 2

1. Line 220 - Missing quotes around entrance parameter in motion mixin
2. Line 328 - Incorrect capitalization: productive-Heading-02 should be productive-heading-02

Both issues would cause runtime errors when the snippets are used, as Carbon Design System expects exact token names with consistent lowercase formatting.

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[Yashrajsingh2001]

I have read the DCO document and I hereby sign the DCO.

[lee-chase]

These corrections is good, thanks for the fix.

Note: #247 proposal could move maintenance out of this repo, but merging this is correct pending a wider review of config.