chore(dialogs): adapt RenameGroupPopup

iterates: status-im/StatusQ#760

ui/app/AppLayouts/Chat/popups/RenameGroupPopup.qml

@@ -6,46 +6,32 @@ import utils 1.0
 import shared.controls 1.0
 
 import StatusQ.Controls 0.1
-import StatusQ.Popups 0.1
+import StatusQ.Popups.Dialog 0.1
 
-StatusModal {
-
-    id: popup
-    height: 210
-    anchors.centerIn: parent
-
-    header.title: qsTr("Group name")
+StatusDialog {
+    id: root
 
     property string activeChannelName
     signal doRename(string groupName)
 
+    width: 400
+    title: qsTr("Group name")
+    standardButtons: Dialog.Save
+
     onOpened: {
         groupName.forceActiveFocus(Qt.MouseFocusReason)
-        groupName.text = popup.activeChannelName;
+        groupName.text = root.activeChannelName
     }
 
-    contentItem: Item {
-        width: popup.width
-        implicitHeight: childrenRect.height
-        Input {
-            id: groupName
-            anchors.left: parent.left
-            anchors.leftMargin: Style.current.padding
-            anchors.right: parent.right
-            anchors.rightMargin: Style.current.padding
-            anchors.top: parent.top
-            anchors.topMargin: Style.current.padding
-            placeholderText: qsTr("Group name")
-            Keys.onEnterPressed: doRename(groupName.text)
-            Keys.onReturnPressed: doRename(groupName.text)
-        }
-    }
+    onAccepted: root.doRename(groupName.text)
 
-    rightButtons: [
-        StatusButton {
-            id: saveBtn
-            text: qsTr("Save")
-            onClicked : { doRename(groupName.text) }
-        }
-    ]
+    Input {
+        id: groupName
+
+        anchors.fill: parent
+
+        placeholderText: qsTr("Group name")
+        Keys.onEnterPressed: doRename(groupName.text)
+        Keys.onReturnPressed: doRename(groupName.text)
+    }
 }