Add Private space Delete settings page inside PS settings page

Contains implementation of settings page for Delete private space
controller inside private space settings page.
- On selecting to delete private space displays list of account signed in
to private profile and deletes the private space after authentication.
- Shows a toast message after private space is deleted

- Adds dependency for setupdesgin loading layout to show a loading
  screen while deletion of private space is in progress.

Recording Link : b/318383729
go/ss/4Aq3rmbSGHMHesK.png

Bug: 318383729
Test: atest DeletePrivateSpaceControllerTest

Change-Id: Ia1730915e2469b47823c507f9ef6cd8f63c99baf
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 195c44e..c8f35ae 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -5070,6 +5070,11 @@
 
         <activity android:name=".privatespace.PrivateProfileContextHelperActivity" android:exported="false"/>
 
+        <activity android:name=".privatespace.delete.PrivateSpaceDeleteActivity"
+                  android:label="@string/private_space_delete_header"
+                  android:exported="false">
+        </activity>
+
         <activity-alias android:name="UsageStatsActivity"
                         android:exported="true"
                         android:label="@string/testing_usage_stats"