Style tweaks: add in-page classic classname Polish footnotes (#8587)
Style tweaks: add in-page classic classname Polish footnotes (#8587)

See <https://www.mobileread.com/forums/showthread.php?p=4183244#post4183244> for discussion.
Frenzie/koreader,koreader/koreader,koreader/koreader,poire-z/koreader,Frenzie/koreader,NiLuJe/koreader,NiLuJe/koreader,poire-z/koreader