Implement Dark Mode Feature in React Application

[jps27CSE]

Issue Description:
We aim to provide users with the option to switch between light mode and dark mode in our React application for improved user experience and accessibility. Implementing a dark mode feature will allow users to customize the visual appearance of the application based on their preferences.

Acceptance Criteria:

Integrate a toggle switch or button to enable users to switch between light mode and dark mode.
Update the application's styling to support the dark mode appearance, ensuring that text, backgrounds, and other elements are optimized for readability and visual appeal in dark mode.
Use CSS variables or a theme provider to manage the application's color scheme and styles for both light mode and dark mode.
Implement a mechanism to persist the user's dark mode preference across sessions.
Create a Pull Request for review and merge when the dark mode feature is fully implemented and tested.

[Ariful2634]

Assigned it to me

[08Uzair]

Please Assign this to me