Improve Dark mode of widgets

### Description

Right now when user switches to dark mode, the widgets remain in light mode and that looks kinda off. Let's use the theme provider and change the styling to dark mode.

<img width="2537" height="550" alt="Image" src="https://github.com/user-attachments/assets/921ff636-d400-4709-aa9c-39710fa9c238" />