CURA-4234 splitted MachineSelection into a separate file and add it to PrintMonitor as well, because now it's part of the sidebar

resources/qml/PrintMonitor.qml

@@ -20,6 +20,14 @@ Column
         simpleNames: true
     }
 
+    MachineSelection {
+        id: machineSelection
+        width: base.width
+        height: UM.Theme.getSize("sidebar_header").height
+        anchors.top: base.top
+        anchors.right: parent.right
+    }
+
     Rectangle
     {
         id: connectedPrinterHeader
@@ -1171,4 +1179,4 @@ Column
             }
         }
     }
-}
+}