ui: fix splitter
ui: fix splitter

lovesnow/flexx,shaunstanislaus/flexx,lancheng/flexx,JohnLunzer/flexx,thezawad/flexx,kevinlondon/flexx,Muktesh01/flexx,thezawad/flexx,alihalabyah/flexx,dut3062796s/flexx,amanikamail/flexx,kuyun-zhangyang/flexx,synmnstr/flexx,gale320/flexx,chengjunjian/flexx,chengjunjian/flexx,shaunstanislaus/flexx,kevinlondon/flexx,hungle90/flexx,Muktesh01/flexx,amanikamail/flexx,a9261/flexx,JohnLunzer/flexx,stonebig/flexx,sesh/flexx,jrversteegh/flexx,abhishekgahlot/flexx,abhishekgahlot/flexx,sesh/flexx,a9261/flexx,zoofIO/flexx,dut3062796s/flexx,alihalabyah/flexx,JohnLunzer/flexx,hungle90/flexx,manashmndl/flexx,manashmndl/flexx,NateChambers/flexx,lancheng/flexx,lovesnow/flexx,jrversteegh/flexx,NateChambers/flexx,gale320/flexx,stonebig/flexx,kuyun-zhangyang/flexx,zoofIO/flexx,synmnstr/flexx