Added darkmode toggle icons and functionality to the Slides(table) page

[gbengaoluwadahunsi]

Summary This pull request implements dark mode functionality and a toggle for the slides (table) page. Users can now switch between dark and light modes seamlessly, enhancing the visual experience of the slides page.

Motivation The motivation behind this pull request is to improve user experience on the slides page by providing a dark mode option. This feature aims to cater to users who prefer a darker interface, reducing eye strain and making viewing slides more comfortable, especially in low-light conditions.

Testing Extensive manual testing has been conducted to ensure the smooth functioning of the dark mode toggle on the slides page. Testing involved checking the compatibility of the feature across different browsers and devices to guarantee a consistent experience for all users.

Questions If there are any uncertainties regarding the implementation or if feedback is sought for any aspect of the changes, please feel free to provide input or ask questions.

[gbengaoluwadahunsi]

Hello@birm. I separated my pull requests as you instructed over a week ago, I unfortunately closed all my pull requests and only got to know today, that I have reopened all now.