add pages and update button

qml/components/pages/DeletePg.qml

@@ -0,0 +1,4 @@
+import QtQuick
+
+Item { }
+

qml/components/pages/InstallPg.qml

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+import QtQuick
+
+Item { }
+
+
+

qml/components/pages/UpdatePg.qml

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+import QtQuick
+import QtQuick.Layouts
+import "../../buttons" as Buttons
+
+Item { 
+  id: root
+
+  ColumnLayout {
+    anchors.fill: parent
+    spacing: 12
+
+    Item {
+      Layout.fillWidth: true
+      Layout.fillHeight: true
+    }
+
+    Buttons.UpdateBtn {
+      Layout.fillWidth: true
+    }
+  }
+}
+
+