A minor bug in the pdf backup to do with the numbering 'Active X of Y' being incorrect.

• Have ten addresses in your wallet (none archived, not sure if this matters or not)
• Make a pdf backup
• Note in the pdf the order of X in the title 'Active X of Y' says [1, 1, 2, 3, 4, 5, 6, 7, 8, 9] when it should say [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

There are ten QR codes so the backup is still fully functional, but it is disconcerting to get to the end of the list and see '9 of 10' instead of '10 of 10'