Ability to import more than one vcf (vCard Contact File) at once
There is an import menu to import .vcf files, but this can be a pain in the butt when each contact was exported as an individual .vcf and you want to import them all.
GNOME Contact's FileChooser widget should allow multiple file selections to import them all at once in cases where they come as individual files (rather than one big .vcf).
Tested with version 45.x