feat: add review modal core structure

[artursantiago]

⚠️ THIS PR DEPENDS ON: ⚠️

• feat: create composable AddReviewModal component #2693

What's the purpose of this pull request?

This PR integrates the AddReviewModal component in the core package for the Review and Ratings section.
The actual review form implementation will be handled in a separate PR to be easy to review.

How it works?

• Adding schema configuration in sections.json for AddReviewModal properties in the Headless CMS
• Creating a new AddReviewModal component in packages/core/src/components/reviews that will handle form logic
• Integrating the modal within the ReviewsAndRatings UI with a temporary trigger button

How to test it?

• Check AddReviewModal structure in core package and its types declarations
• Confirm that CMS-configured content is properly displayed

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References

FEATURE BRANCH
Figma
SFS-2082

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