Merge #453: Change PageStack easing type to InOutCubic

4384896 Change PageStack easing type to InOutCubic (GBKS)

Pull request description:

  See #452 for the problem description, and the [first comment](#452 (comment)) in that thread with the rationale for this change. The current easing type is not supported by QtQuick 2.15. This PR changes the easing type to a supported one that is close to the desired custom bezier curve.

  I am relying on Github Copilot for the analysis of the problem. Seems correct, but maybe you know something neither me or AI knows.

  Addresses #452

ACKs for top commit:
  hebasto:
    ACK 4384896.

Tree-SHA512: 3bfc6a2bbdbd15285cc11a4cb21781c874a42834114674b6151811f53322b9334a5e96d4f6d12594126046bb75e47365e38324102bbd56ba58d223267964a66f

Author: hebasto

src/qml/controls/PageStack.qml

@@ -13,39 +13,35 @@ StackView {
             property: vertical ? "y" : "x"
             from: vertical ? parent.height : parent.width
             to: 0
-            duration: 400
-            easing.type: Easing.Bezier
-            easing.bezierCurve: [0.5, 0.0, 0.2, 1.0]
+            duration: 500
+            easing.type: Easing.InOutCubic
         }
     }
     pushExit: Transition {
         NumberAnimation {
             property: vertical ? "y" : "x"
             from: 0
             to: vertical ? -parent.height : -parent.width
-            duration: 400
-            easing.type: Easing.Bezier
-            easing.bezierCurve: [0.5, 0.0, 0.2, 1.0]
+            duration: 500
+            easing.type: Easing.InOutCubic
         }
     }
     popEnter: Transition {
         NumberAnimation {
             property: vertical ? "y" : "x"
             from: vertical ? -parent.height : -parent.width
             to: 0
-            duration: 400
-            easing.type: Easing.Bezier
-            easing.bezierCurve: [0.5, 0.0, 0.2, 1.0]
+            duration: 500
+            easing.type: Easing.InOutCubic
         }
     }
     popExit: Transition {
         NumberAnimation {
             property: vertical ? "y" : "x"
             from: 0
             to: vertical ? parent.height : parent.width
-            duration: 400
-            easing.type: Easing.Bezier
-            easing.bezierCurve: [0.5, 0.0, 0.2, 1.0]
+            duration: 500
+            easing.type: Easing.InOutCubic
         }
     }
 }