quickshell: fix some warnings

.config/quickshell/ii/modules/background/Background.qml

@@ -29,7 +29,7 @@ Variants {
 
         // Hide when fullscreen
         property list<HyprlandWorkspace> workspacesForMonitor: Hyprland.workspaces.values.filter(workspace=>workspace.monitor && workspace.monitor.name == monitor.name)
-        property var activeWorkspaceWithFullscreen: workspacesForMonitor.filter(workspace=>((workspace.toplevels.values.filter(window=>window.wayland.fullscreen)[0] != undefined) && workspace.active))[0]
+        property var activeWorkspaceWithFullscreen: workspacesForMonitor.filter(workspace=>((workspace.toplevels.values.filter(window=>window.wayland?.fullscreen)[0] != undefined) && workspace.active))[0]
         visible: GlobalStates.screenLocked || (!(activeWorkspaceWithFullscreen != undefined)) || !Config?.options.background.hideWhenFullscreen
 
         // Workspaces

.config/quickshell/ii/modules/bar/BarContent.qml

@@ -307,8 +307,8 @@ Item { // Bar content region
                         color: rightSidebarButton.colText
                     }
                     MaterialSymbol {
-                        readonly property bool bluetoothEnabled: Bluetooth.defaultAdapter.enabled
-                        readonly property BluetoothDevice bluetoothDevice: Bluetooth.defaultAdapter.devices.values.find(device => device.connected)
+                        readonly property bool bluetoothEnabled: Bluetooth.defaultAdapter?.enabled
+                        readonly property BluetoothDevice bluetoothDevice: Bluetooth.defaultAdapter?.devices.values.find(device => device.connected)
                         readonly property bool bluetoothConnected: bluetoothDevice !== undefined
                         text: bluetoothConnected ? "bluetooth_connected" : bluetoothEnabled ? "bluetooth" : "bluetooth_disabled"
                         iconSize: Appearance.font.pixelSize.larger

.config/quickshell/ii/modules/screenCorners/ScreenCorners.qml

@@ -126,7 +126,7 @@ Scope {
 
             // Hide when fullscreen
             property list<HyprlandWorkspace> workspacesForMonitor: Hyprland.workspaces.values.filter(workspace => workspace.monitor && workspace.monitor.name == monitor.name)
-            property var activeWorkspaceWithFullscreen: workspacesForMonitor.filter(workspace => ((workspace.toplevels.values.filter(window => window.wayland.fullscreen)[0] != undefined) && workspace.active))[0]
+            property var activeWorkspaceWithFullscreen: workspacesForMonitor.filter(workspace => ((workspace.toplevels.values.filter(window => window.wayland?.fullscreen)[0] != undefined) && workspace.active))[0]
             property bool fullscreen: activeWorkspaceWithFullscreen != undefined
 
             CornerPanelWindow {

.config/quickshell/ii/modules/sidebarRight/CenterWidgetGroup.qml

@@ -15,7 +15,10 @@ Rectangle {
     color: Appearance.colors.colLayer1
 
     property int selectedTab: 0
-    property var tabButtonList: [{"icon": "notifications", "name": Translation.tr("Notifications")}, {"icon": "volume_up", "name": Translation.tr("Audio")}]
+    property var tabButtonList: [
+        {"icon": "notifications", "name": Translation.tr("Notifications")},
+        {"icon": "volume_up", "name": Translation.tr("Audio")}
+    ]
 
     Keys.onPressed: (event) => {
         if (event.key === Qt.Key_PageDown || event.key === Qt.Key_PageUp) {

.config/quickshell/ii/modules/sidebarRight/quickToggles/BluetoothToggle.qml

@@ -10,13 +10,13 @@ import Quickshell.Hyprland
 
 QuickToggleButton {
     id: root
-    readonly property bool bluetoothEnabled: Bluetooth.defaultAdapter.enabled
-    readonly property BluetoothDevice bluetoothDevice: Bluetooth.defaultAdapter.devices.values.find(device => device.connected)
+    readonly property bool bluetoothEnabled: Bluetooth.defaultAdapter?.enabled ?? false
+    readonly property BluetoothDevice bluetoothDevice: Bluetooth.defaultAdapter?.devices.values.find(device => device.connected) ?? null
     readonly property bool bluetoothConnected: bluetoothDevice !== undefined
     toggled: bluetoothEnabled
     buttonIcon: bluetoothConnected ? "bluetooth_connected" : bluetoothEnabled ? "bluetooth" : "bluetooth_disabled"
     onClicked: {
-        Bluetooth.defaultAdapter.enabled = !Bluetooth.defaultAdapter.enabled
+        Bluetooth.defaultAdapter.enabled = !Bluetooth.defaultAdapter?.enabled
     }
     altAction: () => {
         Quickshell.execDetached(["bash", "-c", `${Config.options.apps.bluetooth}`])

.config/quickshell/ii/modules/verticalBar/VerticalBarContent.qml

@@ -285,8 +285,8 @@ Item { // Bar content region
                         color: rightSidebarButton.colText
                     }
                     MaterialSymbol {
-                        readonly property bool bluetoothEnabled: Bluetooth.defaultAdapter.enabled
-                        readonly property BluetoothDevice bluetoothDevice: Bluetooth.defaultAdapter.devices.values.find(device => device.connected)
+                        readonly property bool bluetoothEnabled: Bluetooth.defaultAdapter?.enabled
+                        readonly property BluetoothDevice bluetoothDevice: Bluetooth.defaultAdapter?.devices.values.find(device => device.connected)
                         readonly property bool bluetoothConnected: bluetoothDevice !== undefined
                         text: bluetoothConnected ? "bluetooth_connected" : bluetoothEnabled ? "bluetooth" : "bluetooth_disabled"
                         iconSize: Appearance.font.pixelSize.larger