Update translations for 2021.05 release (#7707)
Update translations for 2021.05 release (#7707)


NiLuJe/koreader,Frenzie/koreader,poire-z/koreader,koreader/koreader,koreader/koreader,Frenzie/koreader,NiLuJe/koreader,poire-z/koreader