chore: update deps and README (PER_5831)

[pranavz28]

Changes performed during PER_5831

Summary

• Updated devDependencies to newest versions available at time of change.
• Ran TestCafe tests wrapped with Percy and validated two builds (Build 1 and Build 2).
• Updated README.md to include a Dependencies section showing the new versions.

Dependency updates

• @babel/core: 7.28.4
• @babel/preset-env: 7.28.3
• @percy/cli: 1.31.3
• http-server: 14.1.1
• todomvc-app-css: 2.4.3

Files changed

• package.json - bumped devDependencies to latest versions.
• package-lock.json - updated by npm install.
• README.md - added Dependencies section.
• DESCRIPTION.md - this file.

Percy Build Links

• Build 1 (before updates): https://percy.io/9560f98d/web/test-pranav-8a4f5725/builds/43775673
• Build 2 (before updates, port in use): CLI logs showed Percy disabled for second run.
• Build 1 (after updates): https://percy.io/9560f98d/web/test-pranav-8a4f5725/builds/43775927
• Build 2 (after updates): https://percy.io/9560f98d/web/test-pranav-8a4f5725/builds/43775946

Steps followed

1. Read README.md to determine how to run tests and Percy builds.
2. Ran npm install to install current dependencies.
3. Created new branch PER_5831.
4. Ran tests with Percy (used web-t to export PERCY_TOKEN) to generate initial builds.
5. Ran npm outdated and updated package.json devDependencies to latest versions.
6. Ran npm install to apply updated versions and updated package-lock.json.
7. Re-ran tests with Percy to validate snapshots and builds.
8. Updated README.md to reflect the dependency version changes.
9. Committed changes on branch PER_5831.

Notes and troubleshooting

• A transient Percy error occurred on one run due to the Percy CLI port (5338) already in use; retrying produced successful builds.
• Tests remained compatible; no test code changes were required.