CAKE-210 | added possibility to enter comma in amount field (qr_widget.dart); replaced comma by dot in the MoneroURI and BitcoinURI classes (wallet_address_list_view_model.dart)

lib/src/screens/receive/widgets/qr_widget.dart

@@ -67,7 +67,7 @@ class QRWidget extends StatelessWidget {
                                     decimal: true),
                                 inputFormatters: [
                                   BlacklistingTextInputFormatter(
-                                      RegExp('[\\-|\\ |\\,]'))
+                                      RegExp('[\\-|\\ ]'))
                                 ],
                                 textAlign: TextAlign.center,
                                 hintText: S.of(context).receive_amount,

lib/view_model/wallet_address_list/wallet_address_list_view_model.dart

@@ -31,7 +31,7 @@ class MoneroURI extends PaymentURI {
     var base = 'monero:' + address;
 
     if (amount?.isNotEmpty ?? false) {
-      base += '?tx_amount=$amount';
+      base += '?tx_amount=${amount.replaceAll(',', '.')}';
     }
 
     return base;
@@ -47,7 +47,7 @@ class BitcoinURI extends PaymentURI {
     var base = 'bitcoin:' + address;
 
     if (amount?.isNotEmpty ?? false) {
-      base += '?amount=$amount';
+      base += '?amount=${amount.replaceAll(',', '.')}';
     }
 
     return base;