Shrek 6359d27f6f fix: preserve shadow labels when hiding repeated items (#5663) ...

## Description

1. Fix style panel label rendering for repeated `box-shadow` and
`text-shadow` items after hiding one layer.

When a shadow layer is hidden, it is omitted from serialized computed
CSS. The repeated-style helper was reparsing that computed value and
bailing out when the computed item count no longer matched the cascaded
item count, which caused all shadow row labels to lose their details
even though the CSS and edit dialogs remained correct.

This PR:
- preserves repeated-item index mapping when hidden layers compact the
computed value
- returns hidden parsed items for hidden rows so labels still have data
- makes shadow labels prefer the row's parsed shadow value before
falling back to computed data
- adds regression tests for hidden box-shadow and text-shadow layers


https://github.com/user-attachments/assets/bd25e302-fac1-4cea-8a4b-317cc5b448f7


## Steps for reproduction

1. Select an instance in the builder.
2. Add at least 3 `box-shadow` layers in the style panel.
3. Hide the first layer.
4. Observe that, before this fix, the labels collapse to partial values
like `Outer:`.
6. Repeat the same flow with at least 3 `text-shadow` layers.
7. With this PR, hidden and visible shadow rows keep their full labels.

## Code Review

- [ ] hi @kof, I need you to do
  - detailed review (read every line)
  - test it on preview

## Before requesting a review

- [x] made a self-review
- [x] added inline comments where things may be not obvious (the "why",
not "what")

## Before merging

- [x] tested locally and on preview environment (preview dev login:
0000)
- [x] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [x] added tests
- [ ] if any new env variables are added, added them to `.env` file

2026-03-27 10:02:07 +01:00

..

test-cases.md

fix: preserve shadow labels when hiding repeated items (#5663)

2026-03-27 10:02:07 +01:00