focus: Don't stack overflow because None=None

src/shell/focus/mod.rs

@@ -232,7 +232,14 @@ fn raise_with_children(floating_layer: &mut FloatingLayout, focused: &CosmicMapp
                     .0
                     .toplevel()
                     .and_then(|toplevel| toplevel.parent());
-                parent == focused.active_window().wl_surface().map(Cow::into_owned)
+                parent.is_some_and(|parent| {
+                    focused
+                        .active_window()
+                        .wl_surface()
+                        .map(Cow::into_owned)
+                        .map(|focused| parent == focused)
+                        .unwrap_or(false)
+                })
             })
             .cloned()
             .collect::<Vec<_>>()