qml: receive dialog flickable when challenged vertical space

electrum/gui/qml/components/ReceiveDialog.qml

@@ -29,6 +29,23 @@ ElDialog {
         color: "#aa000000"
     }
 
+    padding: 0
+
+    ColumnLayout {
+        anchors.fill: parent
+        spacing: 0
+
+        Flickable {
+            Layout.preferredWidth: parent.width
+            Layout.fillHeight: true
+
+            leftMargin: constants.paddingLarge
+            rightMargin: constants.paddingLarge
+
+            contentHeight: rootLayout.height
+            clip:true
+            interactive: height < contentHeight
+
             ColumnLayout {
                 id: rootLayout
                 width: parent.width
@@ -256,6 +273,9 @@ ElDialog {
                 }
             }
 
+        }
+    }
+
     ColumnLayout {
         visible: _ispaid
         anchors.centerIn: parent