Feat: Change in background when dark mode is on using toggle button

[Pratik-Tech-Wizard]

Describe the feature

Implementing a toggle button to switch to dark mode will change the background color of the application to a darker shade, enhancing visibility and reducing eye strain for users in low-light environments. This feature allows users to customize their viewing experience according to their preferences. Additionally, it improves the overall user interface by providing a modern and visually appealing aesthetic.

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• [X] I agree to follow this project's Code of Conduct
• [X] I'm a GSSOC'24 contributor
• [X] I want to work on this issue

[github-actions[bot]]

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[github-actions[bot]]

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