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

packages/design-system/lib/components/Icons/MaterialIcon/index.tsx

@@ -0,0 +1,5 @@
+export {
+  MaterialIcon,
+  type MaterialIconProps,
+  type MaterialIconSetIconProps,
+} from './MaterialIcon'