fix: translation label issues found via make-pot audit

[Soare-Robert-Daniel]

Summary

Audited the generated .pot files (wp i18n make-pot) for both otter-blocks and otter-pro domains and fixed the issues found:

• Translator comments dropped by minification: the translators: comments for %1$s + %2$d more (visibility conditions) and Image %d alt text (alternative text) (slider) existed in source but terser dropped them when merging the surrounding statements into ternary chains, so make-pot warned about placeholder strings with no comment. Moving the comments inside the sprintf() call, directly above the __() argument, makes them survive into the production bundle.
• Leaked attribute name as UI label: the hover box-shadow Spread control in the Button block showed the raw attribute name hoverBoxShadowSpread as its label (and sent it to translators). It also wrapped the control in AutoDisableSyncAttr with the wrong attribute (boxShadowVertical). Both now match the non-hover section.

Verification

• Rebuilt production bundles and re-ran wp i18n make-pot for both domains: zero warnings, both strings now carry their #. translators: comment in the pot, hoverBoxShadowSpread no longer appears as a msgid.
• msgfmt --check passes on both generated pots.

🤖 Generated with Claude Code

[pirate-bot]

Bundle Size Diff

Package	Old Size	New Size	Diff
Animations	276.77 KB	178.27 KB	-98.51 KB (-35.59%)
Blocks	1.55 MB	1.53 MB	-16.46 KB (-1.04%)
CSS	105.9 KB	7.87 KB	-98.03 KB (-92.57%)
Dashboard	204.08 KB	111.06 KB	-93.02 KB (-45.58%)
Onboarding	166.59 KB	68.14 KB	-98.45 KB (-59.10%)
Export Import	102.86 KB	4.7 KB	-98.16 KB (-95.43%)
Pro	412.66 KB	436.43 KB	23.77 KB (5.76%)

[pirate-bot]

Plugin build for 5f0bf05 is ready 🛎️!

• Download Otter – Page Builder Blocks & Extensions for Gutenberg - Production ~ Development
• Download Otter Pro - Production ~ Development
• Download Blocks Animation - Production ~ Development
• Download Blocks CSS - Production ~ Development
• Download Blocks Export Import - Production ~ Development

[pirate-bot]

E2E Tests

Playwright Test Status: See serial and parallel matrix jobs

Performance Results

serverResponse: {"q25":249.3,"q50":254.3,"q75":271.1,"cnt":10}, firstPaint: {"q25":876.5,"q50":935.5,"q75":1070.3,"cnt":10}, domContentLoaded: {"q25":2290.2,"q50":2314.85,"q75":2366.7,"cnt":10}, loaded: {"q25":2292,"q50":2316.7,"q75":2368.5,"cnt":10}, firstContentfulPaint: {"q25":2595.1,"q50":2625,"q75":2684.6,"cnt":10}, firstBlock: {"q25":9116.9,"q50":9235.85,"q75":9253.2,"cnt":10}, type: {"q25":18.48,"q50":19.17,"q75":20.19,"cnt":10}, typeWithoutInspector: {"q25":17.33,"q50":18.55,"q75":19.19,"cnt":10}, typeWithTopToolbar: {"q25":22.48,"q50":25.38,"q75":27.01,"cnt":10}, typeContainer: {"q25":11.21,"q50":12.55,"q75":13.42,"cnt":10}, focus: {"q25":81.44,"q50":87.18,"q75":93.22,"cnt":10}, inserterOpen: {"q25":27.81,"q50":29.35,"q75":30.64,"cnt":10}, inserterSearch: {"q25":11.24,"q50":12.29,"q75":13.24,"cnt":10}, inserterHover: {"q25":4.39,"q50":4.83,"q75":5.18,"cnt":20}, loadPatterns: {"q25":1112.09,"q50":1128.94,"q75":1167.27,"cnt":10}, listViewOpen: {"q25":141.8,"q50":143.41,"q75":155.55,"cnt":10}