* Feed the image folder to the Image Viewer so the next/previous image navigation works
When double clicking an image in Nautilus, my expectation is that I can navigate to the other images in the folder with the arrow keys.
This doesn't happen currently because the imv command receives only the filename as a parameter.
However, if we use:
`imv -n /myfolder/image.jpg /myfolder`
works becasue we're opening the folder starting at the image given by the -n parameter.
* add migration for imv.desktop update
* Simplify migration
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Co-authored-by: David Heinemeier Hansson <david@hey.com>
