Merged in feat/SW-1711-switch-icons (pull request #1558)

Switches out all the old icons to new ones, and moves them to the design system. The new icons are of three different types: Materialise Symbol, Nucleo, and Customized. Also adds further mapping between facilities/amenities and icons.

Approved-by: Michael Zetterberg
Approved-by: Erik Tiekstra

apps/scandic-web/components/ImageGallery/index.tsx

@@ -3,7 +3,8 @@
 import { memo, useState } from "react"
 import { useIntl } from "react-intl"
 
-import { GalleryIcon } from "@/components/Icons"
+import { MaterialIcon } from "@scandic-hotels/design-system/Icons"
+
 import Image from "@/components/Image"
 import Lightbox from "@/components/Lightbox"
 
@@ -48,7 +49,7 @@ function ImageGallery({
           {...imageProps}
         />
         <div className={styles.imageCount}>
-          <GalleryIcon color="white" />
+          <MaterialIcon icon="filter" color="Icon/Inverted" />
           <Caption color="white" type="label">
             {images.length}
           </Caption>