QmlDesigner: Fix draggable priorities in 3D edit gizmos

Upped default priority of all directional draggables a bit to make
them preferable to free rotation ball.

Change-Id: If934cb723e8c1a8ca9a114d71b19cbfc196e2682
Fixes: QDS-2286
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>

share/qtcreator/qml/qmlpuppet/mockfiles/DirectionalDraggable.qml

@@ -104,6 +104,7 @@ Model {
         grabsMouse: targetNode
         active: rootModel.active
         dragHelper: rootModel.dragHelper
+        priority: 5
 
         onPressed: rootModel.handlePressed(mouseAreaYZ, planePos, screenPos)
         onDragged: rootModel.handleDragged(mouseAreaYZ, planePos, screenPos)
@@ -121,6 +122,7 @@ Model {
         grabsMouse: targetNode
         active: rootModel.active
         dragHelper: rootModel.dragHelper
+        priority: 5
 
         onPressed: rootModel.handlePressed(mouseAreaXZ, planePos, screenPos)
         onDragged: rootModel.handleDragged(mouseAreaXZ, planePos, screenPos)

share/qtcreator/qml/qmlpuppet/mockfiles/MoveGizmo.qml

@@ -161,7 +161,7 @@ Node {
         color: highlightOnHover && (hovering || dragging) ? Qt.lighter(Qt.rgba(0.5, 0.5, 0.5, 1))
                                                           : Qt.rgba(0.5, 0.5, 0.5, 1)
         rotation: view3D.camera.rotation
-        priority: 1
+        priority: 10
         targetNode: moveGizmo.targetNode
 
         view3D: moveGizmo.view3D

share/qtcreator/qml/qmlpuppet/mockfiles/ScaleGizmo.qml

@@ -185,7 +185,7 @@ Node {
             height: 120
             rotation: view3D.camera.rotation
             grabsMouse: scaleGizmo.targetNode
-            priority: 1
+            priority: 10
             active: scaleGizmo.visible
             dragHelper: scaleGizmo.dragHelper