Update print action hotkey listener to QtControls 2

CURA-8684

resources/qml/ActionPanel/SliceProcessWidget.qml

@@ -1,10 +1,9 @@
-// Copyright (c) 2018 Ultimaker B.V.
+// Copyright (c) 2022 Ultimaker B.V.
 // Cura is released under the terms of the LGPLv3 or higher.
 
 import QtQuick 2.7
-import QtQuick.Controls 2.1
+import QtQuick.Controls 2.4
 import QtQuick.Layouts 1.3
-import QtQuick.Controls 1.4 as Controls1
 
 import UM 1.4 as UM
 import Cura 1.0 as Cura
@@ -122,7 +121,9 @@ Column
             tooltip: catalog.i18nc("@label", "Start the slicing process")
             enabled: widget.backendState != UM.Backend.Error && !widget.waitingForSliceToStart
             visible: widget.backendState == UM.Backend.NotStarted || widget.backendState == UM.Backend.Error
-            onClicked: sliceOrStopSlicing()
+            onClicked: {
+                sliceOrStopSlicing()
+            }
         }
 
         Cura.SecondaryButton
@@ -136,7 +137,9 @@ Column
             text: catalog.i18nc("@button", "Cancel")
             enabled: sliceButton.enabled
             visible: !sliceButton.visible
-            onClicked: sliceOrStopSlicing()
+            onClicked: {
+                sliceOrStopSlicing()
+            }
         }
     }
 
@@ -165,7 +168,7 @@ Column
     }
 
     // Shortcut for "slice/stop"
-    Controls1.Action
+    Action
     {
         shortcut: "Ctrl+P"
         onTriggered: