fix: sidebar notif group height anim

modules/sidebar/NotifGroup.qml

@@ -73,12 +73,18 @@ StyledRect {
 
     anchors.left: parent?.left
     anchors.right: parent?.right
-    implicitHeight: content.implicitHeight + Tokens.padding.normal * 2
+    implicitHeight: nonAnimHeight
 
     clip: true
     radius: Tokens.rounding.normal
     color: Colours.layer(Colours.palette.m3surfaceContainer, 2)
 
+    Behavior on implicitHeight {
+        Anim {
+            type: Anim.DefaultSpatial
+        }
+    }
+
     RowLayout {
         id: content