User confusion over Bugs .cash importing of private key

While playing Bugs.cash, a user was confused as they were trying to scan a presented private key, but their Selene wallet was vibrating on the recognised QR code but perceivably doing nothing else.

Feedback needs to be improved around this kind of scenario. Make sure to trim whitespace. If the QR code is not recognised for some reason, pop up a message explaining why it isn't recognised and what formats we do support. If it is recognised as an importable private key, but the address is empty, pop up a message explaining that it's empty. If funds are successfully imported, show a drop down notification of funds received (I believe we already have that).

The problematic private key in question is available by asking Jeremy, and the Bugs.cash dev (George) has also been notified of this problem to check for any formatting issues on his end.