add filter-empty class if no search result in current folder
add filter-empty class if no search result in current folder

owncloud/core,xx621998xx/server,pmattern/server,cernbox/core,michaelletzgus/nextcloud-server,michaelletzgus/nextcloud-server,sharidas/core,IljaN/core,Ardinis/server,cernbox/core,nextcloud/server,jbicha/server,andreas-p/nextcloud-server,nextcloud/server,pmattern/server,pollopolea/core,pixelipo/server,jbicha/server,nextcloud/server,xx621998xx/server,bluelml/core,owncloud/core,pollopolea/core,pollopolea/core,pollopolea/core,whitekiba/server,sharidas/core,bluelml/core,jbicha/server,IljaN/core,cernbox/core,lrytz/core,Ardinis/server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,lrytz/core,lrytz/core,pmattern/server,whitekiba/server,Ardinis/server,Ardinis/server,jbicha/server,nextcloud/server,owncloud/core,xx621998xx/server,endsguy/server,pixelipo/server,pixelipo/server,andreas-p/nextcloud-server,phil-davis/core,whitekiba/server,whitekiba/server,IljaN/core,jbicha/server,bluelml/core,michaelletzgus/nextcloud-server,owncloud/core,bluelml/core,cernbox/core,sharidas/core,andreas-p/nextcloud-server,pmattern/server,pixelipo/server,IljaN/core,xx621998xx/server,Ardinis/server,lrytz/core,owncloud/core,IljaN/core,sharidas/core,lrytz/core,bluelml/core,whitekiba/server,endsguy/server,endsguy/server,michaelletzgus/nextcloud-server,pmattern/server,xx621998xx/server,pollopolea/core,pixelipo/server,cernbox/core,sharidas/core,endsguy/server,endsguy/server