fix the f'd lock screen

Modules/Lock/Lock.qml

@@ -17,7 +17,7 @@ Item {
     id: loader
 
     WlSessionLock {
-      id: lock
+      id: sessionLock
 
       property bool unlocked: false
       property string sharedPasswordBuffer: ""
@@ -30,10 +30,11 @@ Item {
       }
 
       LockSurface {
-        lock: lock
-        sharedPasswordBuffer: lock.sharedPasswordBuffer
+        id: lockSurface
+        lock: sessionLock
+        sharedPasswordBuffer: sessionLock.sharedPasswordBuffer
         onPasswordChanged: newPassword => {
-          lock.sharedPasswordBuffer = newPassword
+          sessionLock.sharedPasswordBuffer = newPassword
         }
       }
     }

Modules/Lock/LockSurface.qml

@@ -15,35 +15,45 @@ WlSessionLockSurface {
   signal passwordChanged(string newPassword)
 
   property bool thisLocked: false
-  readonly property bool locked: thisLocked && !lock.unlocked
+  readonly property bool locked: thisLocked && lock && !lock.unlocked
 
   function unlock(): void {
     console.log("LockSurface.unlock() called")
+    if (lock) {
       lock.unlocked = true
       animDelay.start()
     }
+  }
 
   Component.onCompleted: {
     thisLocked = true
   }
 
+  Component.onDestruction: {
+    animDelay.stop()
+  }
+
   color: "transparent"
 
   Timer {
     id: animDelay
     interval: 1500 // Longer delay for success feedback
-    onTriggered: root.lock.locked = false
+    onTriggered: {
+      if (root.lock) {
+        root.lock.locked = false
+      }
+    }
   }
 
   PowerConfirmModal {
-    id: powerModal
+    id: powerConfirmModal
   }
 
   Loader {
     anchors.fill: parent
     sourceComponent: LockScreenContent {
       demoMode: false
-      powerModal: powerModal
+      powerModal: powerConfirmModal
       passwordBuffer: root.sharedPasswordBuffer
       onUnlockRequested: root.unlock()
       onPasswordBufferChanged: {