App: QR code scanning feedback

[aaronmboyd]

Here is the feedback on static QR code scanning:
I didn't have too much trouble because I spent all of the digital BerkShares I had, but I did run into difficulty at Indian Line Farm and Off the Shelf Farm, when I tried to scan the QR code from their phone screen.
I have an iPhone SE.
I had no trouble with my first purchase, which was at No Comply Foods. They had the QR code printed out. That also worked well at Berkshire Mountain Bakery -- they had it printed out too.
At Off the Shelf and Indian Line my phone would not scan their phone. It didn't even try to put the little yellow brackets around the QR code. It seemed like I didn't register. We tried to cut down on glare on the screen, to no avail. When this happened, I wanted to be able to come at it from a different angle, and I went to the "Where to Spend" option and looked up the businesses. It was too bad I couldn't just choose to send them money from the Where To Spend section of the app.
When I went to Berkshire