feat: Save palette toggle state in URL

I think it would be a nice quality of live improvement if the toggle state for the color palettes would be saved in the URL via search params.

## Use case

When designing a UI while using catppuccin colors I like to open the [color palette](https://catppuccin.com/palette/) at the side for reference.
However I am often just interested in the `mocha` colors and close everything else.

Saving the close / open state inside the URL would allow me to bookmark the page with only the `mocha` flavor open.

> Additionally it would allow to link to a specific flavor by closing all others and then sharing the link.