Catch QR rendering failures when exporting peer configurations and show a
user-facing message instead of failing silently (for example when large I1-I5
values present).
* Update amneziawg.js
The QR code doesn't fit/isn't fully visible and can't be scanned.
* pixel size QR-code
Reduced the pixel size 3 so that the QR code is displayed fully on the smartphone browser.