Allow bulk actions with only one item selected
Users might want to archive conversations from the conversation list screen -- even if there's only one message, easiest way is to select it with Ctrl-Click
and then hit `Ctrl-K.
However, Geary won't let you perform 'bulk actions' with only one message selected (icons are greyed out, and hotkeys do nothing).
I am proposing, to allow users to perform bulk actions on a set of one single message.