Can scan a QR code while it's in Pending state

[loneil]

The mask over the QR code does not obscure it enough to prevent (at least the BC Wallet) from attempting to scan it as a QR code. This can have unintended consequences it seems (depending on BC Wallet build/OS can result in Invalid QR code, or an attempt to do the proof that doesn't work)

This mask should probably obscure the QR code more?

[loneil]

For example, on Android (1707) doing multiple scans and then denying the one that comes up can result in:

[loneil]

Don't have the issue on "Refresh" state as the text box blocks more

[knguyenBC]

Adding an opaque border around the "QR code scanned" will make it look like a button that people may click. I would suggest blurring the QR code or simply increase the transparency (make the qr code lighter). Also, there's a transparency treatment on the text as well, that should be removed.

[esune]

@loneil if the effort is not significant let's implement Kim's recommendations before we close the issue.

[loneil]

Changes in #540
QR is lighter and unscannable. Text is normal opaque text now so no button confusion