[fix] Statistics: translation (#3151)
[fix] Statistics: translation (#3151)

* [fix] Statistics: translation
houqp/koreader,poire-z/koreader,NiLuJe/koreader,Frenzie/koreader,poire-z/koreader,mwoz123/koreader,koreader/koreader,koreader/koreader,apletnev/koreader,pazos/koreader,Frenzie/koreader,mihailim/koreader,Markismus/koreader,NiLuJe/koreader,lgeek/koreader,Hzj-jie/koreader