### Description The mode-toggler can have images on the slider, differentiating between light mode and dark mode. It will make it look more pretty. ### Screenshots Light Mode:  Dark Mode:  ### Checklist - [X] I have checked the existing issues. - [X] I follow [Contributing Guidelines](https://github.com/CSEdgeOfficial/learn.csedge.courses/blob/main/CODE_OF_CONDUCT.md) of this project. - [X] I am a GSSoC'24 contributor. - [X] I want to work on this issue. ### Code of Conduct - [X] I agree to follow this project's "[Code of Conduct](https://github.com/CSEdgeOfficial/learn.csedge.courses/blob/main/CODE_OF_CONDUCT.md)".