Changed color theme and changed the github svg

[SarangKumar]

Hi, I found your repo exciting and the best to practice open source. By the way, I made some changes to your repo.

1. Changed the SVG icon in the dark and light theme using js and made fill color changes in SVG.
2. Made theme changes black for dark theme and white for light theme also added box shadow to give it more feel

[zxcodes]

Please attach a preview (Image/Video) of the changes you’ve made.

[ganeshparjapt]

ya add this preview project

[SarangKumar]

Dark theme	Light Theme

Don't worry the github link has the URL of your repo.

[SarangKumar]

reply please..