Update defaults.lua
Update defaults.lua

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