Usinig the new ShareViewDelegate to dismiss the share extension, might
have broken the "import with signal" functionality. But because we
want to remove it anyway, I've done that now, rather than fix it up.
// FREEBIE
Shows the conversation picker, and sends the attachment to that
conversation.
There's still a lot TODO
-[ ] resolve JSQ dependency
-[ ] properly wait for app to load
-[ ] dismiss share extension after send is complete
-[ ] support non jpeg file types
-[ ] Fix device sleep manager
// FREEBIE
