plugin(fix): catch crash with pcall in event handlers
plugin(fix): catch crash with pcall in event handlers

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