added private key export without password to client config

client/ui/qml/Controls/PopupWithTextField.qml

@@ -0,0 +1,62 @@
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+
+Popup {
+    id: root
+
+    property alias text: textField.text
+    property alias placeholderText: textField.placeholderText
+    property string yesText: "yes"
+    property string noText: "no"
+    property var yesFunc
+    property var noFunc
+
+    signal editingFinished()
+
+    anchors.centerIn: Overlay.overlay
+    modal: true
+    closePolicy: Popup.NoAutoClose
+
+    width: parent.width - 20
+
+    ColumnLayout {
+        width: parent.width
+
+        TextField {
+            id: textField
+            horizontalAlignment: Text.AlignHCenter
+            Layout.fillWidth: true
+            font.pixelSize: 16
+            echoMode: TextInput.Password
+        }
+
+        RowLayout {
+            Layout.fillWidth: true
+            BlueButtonType {
+                id: yesButton
+                Layout.preferredWidth: parent.width / 2
+                Layout.fillWidth: true
+                text: yesText
+                onClicked: {
+                    root.enabled = false
+                    if (yesFunc && typeof yesFunc === "function") {
+                        yesFunc()
+                    }
+                    root.enabled = true
+                }
+            }
+            BlueButtonType {
+                id: noButton
+                Layout.preferredWidth: parent.width / 2
+                Layout.fillWidth: true
+                text: noText
+                onClicked: {
+                    if (noFunc && typeof noFunc === "function") {
+                        noFunc()
+                    }
+                }
+            }
+        }
+    }
+}