Adding a Day-Night Toggle Button

[vandana3869]

Is your feature request related to a problem? Please describe. As a programmer, I prefer dark mode because it is more comfortable for eyes.

Describe the solution you'd like I would like to add one button for switching between dark and light mode.

Additional context Add any other context or screenshots about the feature request here.

Steps Followed✅

Check the box with [x] If you followed all the steps.

• [x] Is your feature request related to a problem? Please describe.

• [x] Describe the solution you'd like

• [x] Additional context

Code of Conduct✅

• [x] I agree to follow this project's Code of Conduct.
• [x] I checked the current issues for duplicate problems.
• [x] I have gone through project README.