[Image] Update issues panel warning for ImageWidget, decorative images don't need alt text validation

[ivyolamit]

Summary:

Update issues panel warning for ImageWidget, decorative images don't need alt text validation

Before	After

Issue: LEMS-3543

Test plan:

1. Navigate to the Editor Page demo
2. Add an image widget and mark it as a Decorative image
3. Confirm that no Warning: image-widget is found

[github-actions]

🗄️ Schema Change: No Changes ✅

[github-actions]

🛠️ Item Splitting: No Changes ✅

[github-actions]

Size Change: +11 B (0%)

Total Size: 496 kB

Filename	Size	Change
packages/perseus-linter/dist/es/index.js	7.21 kB	+11 B (+0.15%)

ℹ️ View Unchanged

Filename	Size
packages/kas/dist/es/index.js	20.8 kB
packages/keypad-context/dist/es/index.js	1 kB
packages/kmath/dist/es/index.js	5.98 kB
packages/math-input/dist/es/index.js	99.2 kB
packages/math-input/dist/es/strings.js	1.61 kB
packages/perseus-core/dist/es/index.item-splitting.js	13.1 kB
packages/perseus-core/dist/es/index.js	22.3 kB
packages/perseus-editor/dist/es/index.js	95.8 kB
packages/perseus-score/dist/es/index.js	9.2 kB
packages/perseus-utils/dist/es/index.js	403 B
packages/perseus/dist/es/index.js	204 kB
packages/perseus/dist/es/strings.js	7.71 kB
packages/pure-markdown/dist/es/index.js	1.39 kB
packages/simple-markdown/dist/es/index.js	6.71 kB

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[github-actions]

npm Snapshot: Published

Good news!! We've packaged up the latest commit from this PR (92500b1) and published it to npm. You
can install it using the tag PR2968.

Example:

pnpm add @khanacademy/perseus@PR2968

If you are working in Khan Academy's frontend, you can run the below command.

./dev/tools/bump_perseus_version.ts -t PR2968

If you are working in Khan Academy's webapp, you can run the below command.

./dev/tools/bump_perseus_version.js -t PR2968

[nishasy]

Makes sense to me

[nishasy]

Note: We'll have to make an update to remove the warning on the alt text field if it's cleared from the decorative toggle. I think it should be pretty easy to clear the errors at the same place where the decorative toggle clears all the other fields.

Screen.Recording.2025-10-23.at.11.44.55.AM.mov

[ivyolamit]

Note: We'll have to make an update to remove the warning on the alt text field if it's cleared from the decorative toggle. I think it should be pretty easy to clear the errors at the same place where the decorative toggle clears all the other fields.

this has been updated in my other PR
#2967