Added animated dark mode toggle

[thevijayshankersharma]

Description

Implemented an animated dark mode toggle feature to enhance user experience. This toggle allows users to switch between light and dark modes seamlessly, with smooth animation effects for a polished transition. The toggle is prominently positioned and offers intuitive functionality, improving accessibility and visual appeal. This addition enhances the overall usability of the application, providing users with greater control over their preferred interface appearance.

Fixes: #211

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• I have made this from my own
• I have taken help from some online resourses
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

[github-actions]

Thank you for submitting your pull request! 🙌 We'll review it as soon as possible. In the meantime, please ensure that your changes align with our CONTRIBUTING.md. If there are any specific instructions or feedback regarding your PR, we'll provide them here. Thanks again for your contribution! 😊