Add a button to sweep unmixable outputs

pages/Transfer.qml

@@ -35,6 +35,7 @@ Rectangle {
     id: root
     signal paymentClicked(string address, string paymentId, string amount, int mixinCount,
                           int priority, string description)
+    signal sweepUnmixableClicked()
 
     color: "#F0EEEE"
 
@@ -295,4 +296,24 @@ Rectangle {
 
         }
     }
+
+    StandardButton {
+        id: sweepUnmixableButton
+        anchors.right: parent.right
+        anchors.top: descriptionLine.bottom
+        anchors.rightMargin: 17
+        anchors.topMargin: 17
+        width: 60*2
+        text: qsTr("SWEEP UNMIXABLE") + translationManager.emptyString
+        shadowReleasedColor: "#FF4304"
+        shadowPressedColor: "#B32D00"
+        releasedColor: "#FF6C3C"
+        pressedColor: "#FF4304"
+        enabled : true
+        onClicked: {
+            console.log("Transfer: sweepUnmixableClicked")
+            root.sweepUnmixableClicked()
+
+        }
+    }
 }