Add unimplemented auth popup for deleting devices

src/gui/Popups/AuthentificationPopup.qml

@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+import QtQuick 2.12
+import "../Base"
+import "../Base/ButtonLayout"
+
+HFlickableColumnPopup {
+    id: popup
+
+
+    property string userId
+    property string deviceIds
+
+
+    page.footer: ButtonLayout {
+        CancelButton {
+            id: cancelButton
+            onClicked: popup.close()
+        }
+    }
+
+    onOpened: cancelButton.forceActiveFocus()
+
+    SummaryLabel { text: qsTr("Not implemented yet") }
+}