Fixed notifications and Bluetooth permissions issues on Android 13 Go. Re-start of the app improved to reduce the chance of leaving part of background service running, but this may make startup activity seem less stable.

app/src/main/res/layout/ble_scan_activity.xml

@@ -73,14 +73,13 @@
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:layout_weight="1"
-            android:background="#00FF00"
             android:drawSelectorOnTop="false" />
 
         <TextView
             android:id="@android:id/empty"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:background="#FF0000"
+            android:background="#101010"
             android:text="No data" />
     </LinearLayout>
 </LinearLayout>