fix: exclude disabled elements from modal focus trap (#10562)

[Pratyush-Panda-2006]

fixes #10562

Modal Focus Trap Fix: Updated
modal.js
to exclude elements with the disabled attribute from the list of focusable elements inside the modal.
New Unit Tests: Created a new test file
modal.test.js
simulating active modals containing enabled and disabled elements to verify that focus skips disabled items on both forward and backward tab actions.
Verification: Executed npm test, formatting, and linting. All tests passed.

[SAPTARSHI-coder]

🔒 Pull Request Closed: This PR has been automatically closed because it does not contain any file changes under the submissions/ directory. Contributors must place their submissions under submissions/examples/your-feature-name/. Thank you!

[github-actions]

❌ Submission Validation Failed

Thank you for your contribution! However, some required files are missing.

📋 Required Structure

submissions/examples/your-feature-name/
├── demo.html     ← Interactive demo (required)
├── style.css     ← CSS styles (required)
└── README.md     ← Documentation (required)

🔍 Issues Found:

🔠 Folder: Core Framework Protection

Case-sensitivity violations found:

• ❌ PR modifies core framework/configuration files: core/modal.js, tests/modal.test.js. Contributors are only allowed to modify files inside the submissions/ directory.

---

🔠 Folder: Submission Folder Protection

Case-sensitivity violations found:

• ❌ This PR does not contain any modifications or additions inside the submissions/ directory. Contributors must place their submissions under submissions/examples/your-feature-name/.

---

📝 How to Fix:

1. Add the missing files to your branch
2. Push the changes to this PR
3. The validator will automatically re-run

📖 See CONTRIBUTING.md for guidelines.

[github-actions]

📊 CSS Bundle Size Benchmark

No change in CSS bundle size. ✨

[SAPTARSHI-coder]

🔒 Pull Request Closed: This PR has been automatically closed because it failed the repository's submission validation check.

To continue contributing, please address the errors shown in the validation summary comment above in your local branch, and open a new, clean Pull Request once resolved. Thank you!