[UX] Add left to close to ConfigDialog for hasFewKeys (#6318)
[UX] Add left to close to ConfigDialog for hasFewKeys (#6318)

Follow-up to <https://github.com/koreader/koreader/pull/6195>.

Part of <https://github.com/koreader/koreader/issues/4029>.
Frenzie/koreader,mwoz123/koreader,NiLuJe/koreader,koreader/koreader,Markismus/koreader,NiLuJe/koreader,pazos/koreader,Hzj-jie/koreader,Frenzie/koreader,poire-z/koreader,koreader/koreader,poire-z/koreader