cre: footnote popup detection: support type=endnote (#1398)
cre: footnote popup detection: support type=endnote (#1398)


koreader/koreader-base,Frenzie/koreader-base,koreader/koreader-base,koreader/koreader-base,Frenzie/koreader-base,NiLuJe/koreader-base,NiLuJe/koreader-base,Frenzie/koreader-base,NiLuJe/koreader-base,koreader/koreader-base,Frenzie/koreader-base,NiLuJe/koreader-base