fix: flickable positions not updating on rebound

Also disable nexus nav fade on rebound start if content smaller than
height
And force vertical flick only on nexus nav

components/containers/StyledFlickable.qml

@@ -4,11 +4,28 @@ import qs.components
 Flickable {
     id: root
 
+    property bool doneFakeFlick
+
     maximumFlickVelocity: 3000
 
     rebound: Transition {
+        onRunningChanged: {
+            if (!running && !root.doneFakeFlick) {
+                root.doneFakeFlick = true;
+                root.flick(1, 1);
+                root.flick(-1, -1);
+                Qt.callLater(() => root.cancelFlick());
+            }
+        }
+
         Anim {
             properties: "x,y"
         }
     }
+
+    Timer {
+        running: root.doneFakeFlick
+        interval: 10
+        onTriggered: root.doneFakeFlick = false
+    }
 }

components/containers/StyledListView.qml

@@ -4,11 +4,28 @@ import qs.components
 ListView {
     id: root
 
+    property bool doneFakeFlick
+
     maximumFlickVelocity: 3000
 
     rebound: Transition {
+        onRunningChanged: {
+            if (!running && !root.doneFakeFlick) {
+                root.doneFakeFlick = true;
+                root.flick(1, 1);
+                root.flick(-1, -1);
+                Qt.callLater(() => root.cancelFlick());
+            }
+        }
+
         Anim {
             properties: "x,y"
         }
     }
+
+    Timer {
+        running: root.doneFakeFlick
+        interval: 10
+        onTriggered: root.doneFakeFlick = false
+    }
 }

modules/nexus/navpane/NavLocations.qml

@@ -14,12 +14,23 @@ StyledFlickable {
 
     required property NexusState nState
 
-    property real topFadeOpacity: visibleArea.yPosition > 0 ? 0 : 1
+    property real topFadeOpacity: fadeShouldBeActive(true) ? 0 : 1
-    property real bottomFadeOpacity: visibleArea.yPosition + visibleArea.heightRatio < 1 ? 0 : 1
+    property real bottomFadeOpacity: fadeShouldBeActive(false) ? 0 : 1
+
+    function fadeShouldBeActive(isStart: bool): bool {
+        // When content is smaller than flickable size, hide fade when rebound starts
+        if (contentHeight + topMargin + bottomMargin < height && rebound.running && ((isStart ? verticalOvershoot > 0 : verticalOvershoot < 0)))
+            return false;
+
+        if (isStart)
+            return visibleArea.yPosition > 0;
+        return visibleArea.yPosition + visibleArea.heightRatio < 1;
+    }
 
     topMargin: Tokens.padding.large
     bottomMargin: Tokens.padding.large
     contentHeight: content.implicitHeight
+    flickableDirection: Flickable.VerticalFlick
 
     layer.enabled: true
     layer.effect: Mask {