Convert from CSS to SCSS. Make a multitude of refinements to styling along the way.

Remove unused glade UI file. Added CSS classes to various components. Fix some alignment issues. Renamed our albums_strip to favorites_list.

Implement recursive file parsing in KotoIndexedAlbum with the intent of using it for "discs" / CD, useful for albums like Foo Fighters: In Your Honor that have 2 or more CDs. Still need to work on refining this further.

Add stub function in our album view for a planned separation of the track listing so we can do it based on discs and other depth-of-3 sub-folders.

src/koto-utils.c

@@ -32,6 +32,7 @@ GtkWidget* koto_utils_create_image_from_filepath(gchar *filepath, gchar *fallbac
 	}
 
 	gtk_image_set_icon_size(GTK_IMAGE(image), GTK_ICON_SIZE_INHERIT);
+	gtk_image_set_pixel_size(GTK_IMAGE(image), width);
 	gtk_widget_set_size_request(image, width, height);
 
 	return image;