Search Provider symbolic icons from a sandboxed env
Currently, the search provider allows passing either an icon name or a GBytesIcon.
The issue is that if the icon is symbolic, passing a GBytesIcon will result in an non-colored icons, the search provider should allow the same as with clipboard text provide something to set an icon name as plus to GBytesIcon but not sure if there's a Gio API to do such thing.
Context: World/design/icon-library!5 (merged)