fix: user author.groups instead of author.member.roles

src/page-job-offers.pug

@@ -7,7 +7,7 @@ div.grid-layer
       data-fields='status, user-thumb, creation, title, description, skills, send',
       set-status='closingDate',
       widget-closingDate='hdapp-closing-date',
-      set-user-thumb='author.account.picture, author.first_name, author.member.roles.ldp:contains.name',
+      set-user-thumb='author.account.picture, author.first_name, author.groups.ldp:contains.name',
       widget-author.account.picture='sib-display-img',
       set-creation='creationDate',
       widget-skills='sib-display-lookuplist',