fix: annotate generated form fields

[PascalThuet]

Summary

• add stable ids and autocomplete=off to SunEditor-generated internal input/textarea fields
• mark decorative line-number textareas as aria-hidden and remove them from tab order
• add a unit test covering the generated field attributes

Why

Chrome surfaces form warnings when generated editor controls have neither id nor name, or recognized fields miss autocomplete. The added ids avoid changing form submission payloads while silencing those diagnostics.

Test

• npm test -- --runTestsByPath test/unit/core/section/constructor.spec.js
• npm run lint:type
• npx eslint src/core/section/constructor.js

[PascalThuet]

Small contribution note for maintainers:

• This is intended as a minor bugfix/accessibility cleanup, not a new feature or major behavior change.
• I checked open issues before submitting and did not find an existing issue covering generated internal form fields missing ids/autocomplete attributes.
• No dist/build artifacts are included.
• Local checks run:
  • npm test -- --runTestsByPath test/unit/core/section/constructor.spec.js
  • npm run lint:type
  • npx eslint src/core/section/constructor.js

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.79%. Comparing base (6a4e749) to head (4e2c6ab).
❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1640      +/-   ##
==========================================
+ Coverage   81.76%   81.79%   +0.03%     
==========================================
  Files         131      131              
  Lines       21913    21917       +4     
  Branches     6534     6538       +4     
==========================================
+ Hits        17917    17928      +11     
+ Misses       3113     3106       -7     
  Partials      883      883              

Files with missing lines	Coverage Δ
src/core/section/constructor.js	91.12% <100.00%> (+1.01%)	⬆️

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.