allow apps to add buttons on runtime without negatively impacting performance
allow apps to add buttons on runtime without negatively impacting performance

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