Forms: Display star rating icons in response inspector (#46874)

* Forms: Add FieldRating component for response inspector

* Forms: Display star rating icons in response inspector

* Add changelog entry

* Forms: Add accessibility support to FieldRating component

* Forms: Add unit tests for FieldRating component

* Forms: Add validation and clamping to FieldRating

- Validate rating and max values are finite and non-negative
- Clamp rating to max value to prevent overflow (e.g., 7/5 shows 5 stars)
- Fall back to "-" for non-numeric values

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Forms: Show filled and empty stars for rating display

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Forms: Add strict numeric parsing for rating values

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Forms: Add upper bound for rating icons to prevent DOM bloat

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Forms: Extract RatingIcon component for reuse

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Forms: Extract RatingIcon to shared module

Move RatingIcon component from input-rating/edit.js to a dedicated
rating-icon.js file to allow importing without editor dependencies.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Forms: Add MAX_RATING_ICONS constant to shared module

Move the max rating icons limit to rating-icons.js as a shared constant.
Update field-rating/edit.js to import and use it.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Forms: Use shared rating modules in dashboard

Import RatingIcon and MAX_RATING_ICONS from the shared modules instead
of the block editor files to avoid pulling in unnecessary dependencies.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* add strokeWidth as option to rating icon

* thinner stroke on empty stars

* simplify output on early bails

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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/21641914065

Upstream-Ref: Automattic/jetpack@3cf71ee

Author: LiamSarsfield