minor: change setting names for home_dir_name
minor: change setting names for home_dir_name

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