CAKE-266 | added a frame for qr code on qr_widget.dart and exchange_trade_page.dart

lib/src/screens/exchange_trade/exchange_trade_page.dart

@@ -144,13 +144,17 @@ class ExchangeTradeState extends State<ExchangeTradeForm> {
                         child: Center(
                             child: AspectRatio(
                                 aspectRatio: 1.0,
-                                child: QrImage(
-                                  data: trade.inputAddress ?? fetchingLabel,
-                                  backgroundColor: Colors.transparent,
-                                  foregroundColor: Theme.of(context)
-                                      .accentTextTheme
-                                      .subtitle
-                                      .color,
+                                child: Container(
+                                  padding: EdgeInsets.all(5),
+                                  color: Colors.white,
+                                  child: QrImage(
+                                    data: trade.inputAddress ?? fetchingLabel,
+                                    backgroundColor: Colors.white,
+                                    /*foregroundColor: Theme.of(context)
+                                        .accentTextTheme
+                                        .subtitle
+                                        .color,*/
+                                  ),
                                 )))),
                     Spacer(flex: 3)
                   ]),

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

@@ -44,11 +44,16 @@ class QRWidget extends StatelessWidget {
                   child: Center(
                       child: AspectRatio(
                           aspectRatio: 1.0,
-                          child: QrImage(
-                            data: addressListViewModel.uri.toString(),
-                            backgroundColor: Colors.transparent,
-                            foregroundColor: Theme.of(context).accentTextTheme.
-                            display3.backgroundColor,
+                          child: Container(
+                            padding: EdgeInsets.all(5),
+                            color: Colors.white,
+                            child: QrImage(
+                              data: addressListViewModel.uri.toString(),
+                              //backgroundColor: Colors.transparent,
+                              backgroundColor: Colors.white,
+                              /*foregroundColor: Theme.of(context).accentTextTheme.
+                              display3.backgroundColor,*/
+                            ),
                           ))))),
           Spacer(flex: 3)
         ]),