fix dropdown: fix header icon style
fix dropdown: fix header icon style

lumapps/lumX,terradatum/lumX,jefvel/lumX,jason588/lumX,hinablue/lumX,bright-sparks/lumX,Ener-Getick/lumX,jason588/lumX,jason588/lumX,jayaguilar/lumX,clementprevot/lumX,ezzye/write-to-be-heard,clementprevot/lumX,lumapps/lumX,itxd/lumX,terradatum/lumX,b-cuts/lumX,jefvel/lumX,Ener-Getick/lumX,bijeeshtk/lumx,itxd/lumX,jayaguilar/lumX,jason588/lumX,itxd/lumX,hinablue/lumX,bright-sparks/lumX,jefvel/lumX,noikiy/lumX,lumapps/lumX,daniel-oliveiravas/lumX,ezzye/write-to-be-heard,hinablue/lumX,Ener-Getick/lumX,noikiy/lumX,Ener-Getick/lumX,cupceavictor/lumX,jefvel/lumX,jayaguilar/lumX,ezzye/write-to-be-heard,cupceavictor/lumX,clementprevot/lumX,bijeeshtk/lumx,bijeeshtk/lumx,itxd/lumX,terradatum/lumX,b-cuts/lumX,hinablue/lumX,daniel-oliveiravas/lumX,jayaguilar/lumX,noikiy/lumX,ezzye/write-to-be-heard,daniel-oliveiravas/lumX,lumapps/lumX,cupceavictor/lumX,cupceavictor/lumX,bright-sparks/lumX,b-cuts/lumX,b-cuts/lumX,bijeeshtk/lumx,terradatum/lumX,clementprevot/lumX,bright-sparks/lumX,noikiy/lumX,daniel-oliveiravas/lumX