Improved QR code readability

Author: cryptapi

cryptapi/templates/cryptapi/qrcode.html

@@ -22,7 +22,7 @@
         var qrcode = kjua({
             render: 'image',
             crisp: true,
-            ecLevel: 'H',
+            ecLevel: 'Q',
             size: 400,
             rounded: 50,
             text: "{{ payment_uri|safe }}",