Delete "these books" instead of "this book" for > 1 items.

[AarbronBeast]

Mid-2010 Mac Pro, macOS Sierra 10.12.1
Bookpedia 5.5.0
DVDpedia 5.5.0

Another small observation.

When selecting multiple books/DVDs and then hitting the Delete/Backspace key, the confirmation message that appears says "You are about to delete this book (or DVD) from your library..." I think this message should say "these books" or "these DVDs" when deleting multiple items at once. Or better yet, include the item count, as is "these 4 books"

[Conor]

That is a tough one with the extensive localizations. But has been added into the beta and next version. I have now included the number of books as suggested for the plural.

If anybody runs into any incorrect translations of that phrase let me know.