Update readerfrontlight.lua
Update readerfrontlight.lua

Frontlight decrease of sensitivity for two-fingered pan gesture
chrox/koreader,pazos/koreader,mihailim/koreader,koreader/koreader,ashhher3/koreader,poire-z/koreader,noname007/koreader,apletnev/koreader,NickSavage/koreader,Frenzie/koreader,houqp/koreader,ashang/koreader,chihyang/koreader,Frenzie/koreader,NiLuJe/koreader,Hzj-jie/koreader,lgeek/koreader,Markismus/koreader,frankyifei/koreader,mwoz123/koreader,koreader/koreader,robert00s/koreader,poire-z/koreader,NiLuJe/koreader