Dark Mode Toggle Not Working on Website

[Raj-banerjee25]

Describe the bug
-> The dark mode feature on the website isn't functioning as expected. When the dark mode toggle is clicked, there is either no visible change or only partial changes are applied to the UI.
Please assign me this issue under gssoc ext

To Reproduce
Steps to reproduce the behavior:

1. Go to the website.
2. Locate and click on the dark mode toggle button.
3. Observe whether the theme changes to dark mode properly.

Expected behavior
Upon toggling dark mode, the entire website should switch to a darker color scheme that makes it easier on the eyes in low-light environments.

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser : chrome
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.