Autothemeing of Folders

## Feature Description

When a wallpaper changes the DankMaterialShell looks through the icon folders to find a suitable color to change the GTK folder colors for Nautilus that matches the current extracted colors from the wallpaper that you are using.

## Use Case

This would be helpful in the way that it would prevent users from having to manually switch their icon pack to keep their system to have one specific color scheme. If this functionality is provided in a Dank Suite application it would remove some need to go into other packages or eliminate them completely.

## Compositor

Is this feature specific to one compositor?

All compositors (if possible)

## Proposed Solution

Expand the settings of DankMaterialShell to have an option to automatic theming or to make a application like nwg-look (gkt settings) that is in the Dank Suite.

## Alternatives/Existing Solutions

The nwg-look package that controls gtk-settings

No files, tests, or entry points are named. Start by locating DankMaterialShell's wallpaper color extraction and settings entry points, then review how GTK, Nautilus, icon folders, and nwg-look relate to the requested behavior. Done would require a defined automatic folder-theme option that works across supported compositors.

Written by the indexing model from the issue text.