fix: screen not updaing while dim

Author: KaffeinatedKat

src/displayapp/DisplayApp.cpp

@@ -186,7 +186,11 @@ void DisplayApp::Refresh() {
   TickType_t queueTimeout;
   switch (state) {
     case States::Idle:
-      queueTimeout = portMAX_DELAY;
+      if (settingsController.GetAlwaysOnDisplay()) {
+        queueTimeout = lv_task_handler();
+      } else {
+        queueTimeout = portMAX_DELAY;
+      }
       break;
     case States::Running:
       if (!currentScreen->IsRunning()) {

src/systemtask/SystemTask.cpp

@@ -320,7 +320,12 @@ void SystemTask::Work() {
             // if it's in sleep mode. Avoid bricked device by disabling sleep mode on these versions.
             spiNorFlash.Sleep();
           }
-          spi.Sleep();
+
+	  // If the spi goes to sleep, AlwaysOn will not update the screen while dim, and the screen colors invert
+	  // upon wakeup
+	  if (!settingsController.GetAlwaysOnDisplay()) {
+            spi.Sleep();
+	  }
 
           // Double Tap needs the touch screen to be in normal mode
           if (!settingsController.isWakeUpModeOn(Pinetime::Controllers::Settings::WakeUpMode::DoubleTap)) {