progressbar: fix infill offset in bookstatus
progressbar: fix infill offset in bookstatus

chihyang/koreader,koreader/koreader,poire-z/koreader,Frenzie/koreader,poire-z/koreader,NickSavage/koreader,lgeek/koreader,NiLuJe/koreader,koreader/koreader,robert00s/koreader,pazos/koreader,apletnev/koreader,mihailim/koreader,frankyifei/koreader,Markismus/koreader,Frenzie/koreader,Hzj-jie/koreader,mwoz123/koreader,houqp/koreader,NiLuJe/koreader