Add warning about non-imported files.
Shotwell currently does not support many file types. Although adding support for those is a separate issue (#20 for example), it would be very nice to, after an import finishes, be warned of a list of files that did not import. It would also be helpful for this to be dropped as a text file on the filesystem as it could be quite a few files.
I'm requesting this after nearly losing a decent number of files, since I imported a directory (copying into the main library) and then deleted the originating directory, almost emptying my Trash before I realized quite a few files had been imported! (This used to happen with .gif, but doesn't anymore. It does still happen with many other file types shotwell doesn't recognize.)
This is on Shotwell 0.30.14 – “Celle” on Ubuntu 22.04.3 LTS.