fix mix to wallet display name

src/main/java/com/sparrowwallet/sparrow/control/WebcamService.java

@@ -161,7 +161,7 @@ public class WebcamService extends ScheduledService<Image> {
         Graphics2D g2d = (Graphics2D)bufferedImage.getGraphics();
         float[] dash1 = {10.0f};
         g2d.setColor(Color.BLACK);
-        g2d.setStroke(new BasicStroke(3.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 10.0f, dash1, 0.0f));
+        g2d.setStroke(new BasicStroke(resolution == WebcamResolution.HD ? 3.0f : 1.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 10.0f, dash1, 0.0f));
         g2d.draw(new RoundRectangle2D.Double(x, y, squareSize, squareSize, 10, 10));
         g2d.dispose();
 

src/main/java/com/sparrowwallet/sparrow/wallet/MixToController.java

@@ -56,6 +56,17 @@ public class MixToController implements Initializable {
         allWallets.addAll(destinationWallets);
 
         mixToWallets.setItems(FXCollections.observableList(allWallets));
+        mixToWallets.setConverter(new StringConverter<>() {
+            @Override
+            public String toString(Wallet wallet) {
+                return wallet == null ? "" : wallet.getFullDisplayName();
+            }
+
+            @Override
+            public Wallet fromString(String string) {
+                return null;
+            }
+        });
 
         String mixToWalletId = null;
         try {