api person update

src/api/persons.js

@@ -1,4 +1,5 @@
 import ImageArtifactType from '../core/ImageArtifactType'
+import { encodeImage } from './image'
 const profilePicture = profile => profile.picture.getPicture(ImageArtifactType.BIG)
 
 export function encodePerson(person) {
@@ -7,5 +8,6 @@ export function encodePerson(person) {
         shortName: person.shortName(),
         name: person.splitName(),
         picture: profilePicture(person),
+        preview: encodeImage(person.picture),
     }
 }