Tweak the spacer appearance condition
Tweak the spacer appearance condition

Make it sync with the first/last icon, instead of always showing it.
Doesn't change much, since it's invisible, but, still, more correct this
way ;).

lgeek/koreader,noname007/koreader,chihyang/koreader,ashhher3/koreader,koreader/koreader,Frenzie/koreader,poire-z/koreader,NiLuJe/koreader,frankyifei/koreader,koreader/koreader,mwoz123/koreader,ashang/koreader,Frenzie/koreader,chrox/koreader,houqp/koreader,Hzj-jie/koreader,poire-z/koreader,apletnev/koreader,mihailim/koreader,Markismus/koreader,NiLuJe/koreader,pazos/koreader,NickSavage/koreader,robert00s/koreader