Addition of dark mode

[CoderGirl2844]

Describe the feature

Adding the dark mode to the website will offer certain benefits
1.Reduce the eye strain and improve readability
2.Reduce the blue light emissions
3. Save the battery

Add ScreenShots

I want to convert the light theme to dark theme

Record

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

[github-actions]

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