[Feature] Change in the Text Selection colors as website's main color scheme

## Description
When we select some text on the website, its background color becomes the default browser selecting color, light bluish in general. The main color scheme of CC website is black & white. So the selection should follow the same pattern for better looking UI.

## Alternatives
This solution is better as it shows the attention to detail Creative Commons provides with their products.

## Additional context
Some Screenshots for reference :

Before changes :

After changes :

## Implementation

- [x] I would be interested in implementing this feature.

Reproduce the text-selection behavior on the Creative Commons website, then locate the stylesheet or design-system entry point that controls selection styling. Confirm the result against the supplied before-and-after screenshots; done means selected text uses the site's black-and-white visual scheme rather than the browser's default color.

Written by the indexing model from the issue text.