CW-368 Fix Range error accessing outputs (#912)

lib/src/screens/send/widgets/confirm_sending_alert.dart

@@ -142,10 +142,8 @@ class ConfirmSendingAlertContentState extends State<ConfirmSendingAlertContent>
     required this.feeValue,
     required this.feeFiatAmount,
     required this.outputs})
-      : itemCount = 0,
-        recipientTitle = '' {
-    itemCount = outputs.length;
-    recipientTitle = itemCount > 1
+      : recipientTitle = '' {
+    recipientTitle = outputs.length > 1
         ? S.current.transaction_details_recipient_address
         : S.current.recipient_address;
   }
@@ -165,7 +163,6 @@ class ConfirmSendingAlertContentState extends State<ConfirmSendingAlertContent>
   ScrollController controller = ScrollController();
   double fromTop = 0;
   String recipientTitle;
-  int itemCount;
   bool showScrollbar = false;
 
   @override
@@ -342,12 +339,12 @@ class ConfirmSendingAlertContentState extends State<ConfirmSendingAlertContent>
                               decoration: TextDecoration.none,
                             ),
                           ),
-                          itemCount > 1
+                          outputs.length > 1
                               ? ListView.builder(
                               padding: EdgeInsets.only(top: 0),
                               shrinkWrap: true,
                               physics: NeverScrollableScrollPhysics(),
-                              itemCount: itemCount,
+                              itemCount: outputs.length,
                               itemBuilder: (context, index) {
                                 final item = outputs[index];
                                 final _address = item.isParsedAddress