add tabs component

Main.qml

@@ -1,5 +1,5 @@
 import QtQuick
-import QtQuick.Controls.Basic
+import QtQuick.Controls
 import QtQuick.Layouts
 
 import archpack
@@ -8,7 +8,6 @@ import "qml/buttons" as Buttons
 
 ApplicationWindow {
   id: root
-
   title: "Arch Linux Updater"
   width: 740
   height: 960
@@ -27,17 +26,30 @@ ApplicationWindow {
 
     RowLayout {
       id: headerLayout
-      Layout.alignment: Qt.AlignTop
       Layout.maximumWidth: Number.POSITIVE_INFINITY
 
       Components.Title {
         id: title
         Layout.maximumWidth: Number.POSITIVE_INFINITY
+        Layout.alignment: Qt.AlignBottom
       }
 
       Buttons.Settings {
         id: settingsButton
+        Layout.alignment: Qt.AlignBottom
       }
     }
+
+    Components.Line { id: line }
+
+    Components.Tabs {
+      id: tabs
+      Layout.alignment: Qt.AlignTop
+      parentWidth: mainLayout.width
+    }
+
+    Item {
+      Layout.fillHeight: true
+    }
   }
 }