Enable predictive back gesture for Settings app.

Bug: 238729272
Test: manually tested on device
Change-Id: Ib75902d1d7bbd289705cb62ef00d5840676bda72
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 938e33d..2ff62cc 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -132,7 +132,8 @@
             android:defaultToDeviceProtectedStorage="true"
             android:directBootAware="true"
             android:appComponentFactory="androidx.core.app.CoreComponentFactory"
-            android:gwpAsanMode="always">
+            android:gwpAsanMode="always"
+            android:enableOnBackInvokedCallback="true">
 
         <uses-library android:name="org.apache.http.legacy" />