Add mechanism to add accessibility service or activity into bluetooth 'Related' category

Bug: 225117933
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothDetailsRelatedToolsControllerTest
Change-Id: Iaa3593b4fd9d916fe7f96b3e4bb0965fdbbe36ec

src/com/android/settings/overlay/FeatureFactoryImpl.java

@@ -280,10 +280,9 @@ public class FeatureFactoryImpl extends FeatureFactory {
     }
 
     @Override
-    public BluetoothFeatureProvider getBluetoothFeatureProvider(Context context) {
+    public BluetoothFeatureProvider getBluetoothFeatureProvider() {
         if (mBluetoothFeatureProvider == null) {
-            mBluetoothFeatureProvider = new BluetoothFeatureProviderImpl(
-                    context.getApplicationContext());
+            mBluetoothFeatureProvider = new BluetoothFeatureProviderImpl(getAppContext());
         }
         return mBluetoothFeatureProvider;
     }