WebSearch: fix author page affiliation information
WebSearch: fix author page affiliation information

* Show correct institute information for authors in the co-author position.
  (closes: #13951)

tiborsimko/invenio-records,inveniosoftware/invenio-records,tiborsimko/invenio-records,inveniosoftware/invenio-records,inveniosoftware/invenio-search,tiborsimko/invenio-search,tiborsimko/invenio-search,inveniosoftware/invenio-search