dark and light toggle mode

[sv410]

Description

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Checklist

• [X] I have checked the existing issues
• [X] I have read the Contributing Guidelines
• [X] I'm a GSSoC'24-Extd contributor
• [X] I'm a Hacktoberfest'24 contributor
• [X] I am willing to work on this issue (optional)

[github-actions[bot]]

👋 Thank you @sv410 for raising an issue! We appreciate your effort in helping us improve. Our team will review it shortly. Stay tuned!