[React/traffic-lights] Fix timer lag after switching tabs - closes #325

[rishabhm05]

Title and Issue number

Title :

Issue No: Close #325 Timer lags behind lights after switching tabs issue

Code Stack :

Close #

Checklist:

• [] I have mentioned the issue number in my Pull Request.
• [] I have commented my code, particularly in hard-to-understand areas
• [] I have created a helpful and easy to understand README.md
• [] I have updated the Index.html file for my contribution

[netlify[bot]]

✅ Deploy Preview for preeminent-tapioca-4294b2 canceled.

Name	Link
🔨 Latest commit	c360f8c27b657bd99baa5f5cc214600981cdefb2
🔍 Latest deploy log	https://app.netlify.com/sites/preeminent-tapioca-4294b2/deploys/6547b74a5928d8000875663f