Improve todo UI and enhance JS functionality

[Richa9693]

Summary

This PR improves the UI and enhances the JavaScript functionality of the Todo List project.

Changes Made

• Improved overall UI for better readability and user experience
• Enhanced JavaScript logic for handling todos more efficiently
• Added better interaction handling (toggle complete, delete actions)
• Cleaned up and structured code for maintainability
• Updated localStorage handling for consistency

Project Affected

• todo-list/index.html
• todo-list/style.css
• todo-list/script.js

Screenshots (Optional)

UI improvements applied to the Todo List interface.

Notes

This change focuses on improving user experience while keeping the original project intent intact.