Comment 0 for bug 2020603

Technically two enhancements, both for the context menu on a cover image:

a) Save cover to disk. Self-explanatory.

b) Save cover to data folder. Would be useful for people who save alternative covers. a) would mostly cover it, this is mostly for convenience.

Alternative: For a), perhaps the default could be the data folder if the current book. This may be annoying if it doesn't exist though.

Thanks in advance.