Set min.-height and 'stage-awareness' for print-setup-UI. [CURA-6478]

resources/qml/ExpandableComponent.qml

@@ -79,7 +79,10 @@ Item
     property int shadowOffset: 2
 
     // Prefix used for the dragged position preferences. Preferences not used if empty. Don't translate!
-    property var dragPreferencesNamePrefix: ""
+    property string dragPreferencesNamePrefix: ""
+
+    // Whether this component can remain when switchin from one stage to the other (for ex. 'Prepare' to 'Preview')
+    property bool isMultiStage: false
 
     function toggleContent()
     {
@@ -325,6 +328,18 @@ Item
         updateDragPosition();
     }
 
+    Connections
+    {
+        target: UM.Controller
+        onActiveStageChanged:
+        {
+            if (isMultiStage)
+            {
+                updateDragPosition();
+            }
+        }
+    }
+
     // DO NOT MOVE UP IN THE CODE: This connection has to be here, after the definition of the content item.
     // Apparently the order in which these are handled matters and so the height is correctly updated if this is here.
     Connections