Create a mouse area around the sidebar to avoid propagating mouse wheel events.

Contributes to CURA-4495

resources/qml/Cura.qml

@@ -476,6 +476,14 @@ UM.MainWindow
                         collapseSidebarAnimation.start();
                     }
                 }
+
+                MouseArea
+                {
+                    visible: UM.Controller.activeStage.sidebarComponent != ""
+                    anchors.fill: parent
+                    acceptedButtons: Qt.AllButtons
+                    onWheel: wheel.accepted = true
+                }
             }
 
             UM.MessageStack

resources/qml/Settings/SettingView.qml

@@ -142,7 +142,7 @@ Item
         TextField
         {
             id: filter;
-
+            height: parent.height
             anchors.left: parent.left
             anchors.right: clearFilterButton.left
             anchors.rightMargin: Math.round(UM.Theme.getSize("sidebar_margin").width)