Add a sleep after kobo resume to resolve partial blank screen issue (#1874)
Add a sleep after kobo resume to resolve partial blank screen issue (#1874)

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