fix: 简化Container实现代码

panel/qml/Container.qml

@@ -1,5 +1,4 @@
 import QtQuick 2.15
-import QtQml.Models 2.15
 import QtQuick.Layouts 1.15
 
 import org.ukui.quick.widgets 1.0
@@ -16,16 +15,6 @@ WidgetContainerItem {
         anchors.fill = parent
     }
 
-    onWidgetItemAdded: (widgetItem) => {
-        widgetModel.append({
-            "widgetItem": widgetItem
-        });
-    }
-
-    ListModel {
-        id: widgetModel
-    }
-
     StyleBackground {
         anchors.fill: parent
         borderColor: Theme.ButtonText
@@ -44,14 +33,14 @@ WidgetContainerItem {
                 bottomMargin: containerItem.WidgetContainer.padding.bottom
             }
 
-            rows: containerItem.isHorizontal ? 1 : widgetModel.count
-            columns: containerItem.isHorizontal ? widgetModel.count : 1
+            rows: containerItem.isHorizontal ? 1 : repeater.count
+            columns: containerItem.isHorizontal ? repeater.count : 1
             rowSpacing: 4
             columnSpacing: 4
 
             Repeater {
                 id: repeater
-                model: widgetModel
+                model: containerItem.widgetItemModel
                 delegate: widgetLoaderComponent
             }
         }