fix disabled buttons not showing icons
fix disabled buttons not showing icons

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