Fix focus change when opening HW select list

Previously it was not possible to select a HW device without a mouse
because the focus change to the HW list was not working.  This is
because an extra nested ListView had been left in.  Remove the extra
ListView and set the focus target correctly.

src/main.qml

@@ -132,7 +132,7 @@ ApplicationWindow {
                         Layout.fillWidth: true
                         onClicked: {
                             hwpopup.open()
-                            hwlistview.currentItem.forceActiveFocus()
+                            hwlist.currentItem.forceActiveFocus()
                         }
                         Accessible.ignored: ospopup.visible || dstpopup.visible || hwpopup.visible
                         Accessible.description: qsTr("Select this button to choose your target Raspberry Pi")
@@ -477,10 +477,6 @@ ApplicationWindow {
                 Layout.preferredWidth: hwlist.width
                 Layout.preferredHeight: hwlist.height
 
-                ListView {
-                    id: hwlistview
-                    interactive: false
-
                 ListView {
                     id: hwlist
                     model: ListModel {
@@ -517,7 +513,6 @@ ApplicationWindow {
             }
         }
     }
-    }
 
     /*
       Popup for OS selection