Fix settings crash

Widgets/SettingsPopup.qml

@@ -53,6 +53,7 @@ PanelWindow {
         border.color: Qt.rgba(Theme.outline.r, Theme.outline.g, Theme.outline.b, 0.12)
         border.width: 1
         
+        // Simple opacity and scale control tied directly to settingsVisible
         opacity: settingsPopup.settingsVisible ? 1.0 : 0.0
         scale: settingsPopup.settingsVisible ? 1.0 : 0.95
         

shell.qml

@@ -342,6 +342,23 @@ ShellRoot {
     SettingsPopup {
         id: settingsPopup
         settingsVisible: root.settingsVisible
+        
+        // Use a more direct approach for two-way binding
+        onSettingsVisibleChanged: {
+            if (settingsVisible !== root.settingsVisible) {
+                root.settingsVisible = settingsVisible
+            }
+        }
+        
+        // Also listen to root changes
+        Connections {
+            target: root
+            function onSettingsVisibleChanged() {
+                if (settingsPopup.settingsVisible !== root.settingsVisible) {
+                    settingsPopup.settingsVisible = root.settingsVisible
+                }
+            }
+        }
     }
     
     // Application and clipboard components