[Biometric Onboarding & Edu] Update Set up Face Unlock page

Update icons, strings and layouts for new UX design

Bug: 370940762
Test: manual:
      Pre condition - no face enrolled
      Go Settings>Security & privacy>Device unlock>Face unlock
Test: atest FaceEnrollTest
Flag: com.android.settings.flags.biometrics_onboarding_education
Change-Id: Ie469c47005afb941f5646a2f790736362c23c697

src/com/android/settings/biometrics/face/FaceSettingsEnrollButtonPreferenceController.java

@@ -16,8 +16,6 @@
 
 package com.android.settings.biometrics.face;
 
-import static com.android.settings.Utils.SETTINGS_PACKAGE_NAME;
-
 import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.content.Intent;
@@ -28,6 +26,7 @@ import androidx.preference.Preference;
 
 import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
+import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.password.ChooseLockSettingsHelper;
 import com.android.settingslib.RestrictedLockUtilsInternal;
 import com.android.settingslib.widget.LayoutPreference;
@@ -83,7 +82,8 @@ public class FaceSettingsEnrollButtonPreferenceController extends BasePreference
     public void onClick(View v) {
         mIsClicked = true;
         final Intent intent = new Intent();
-        intent.setClassName(SETTINGS_PACKAGE_NAME, FaceEnrollIntroduction.class.getName());
+        intent.setClass(mContext, FeatureFactory.getFeatureFactory().getFaceFeatureProvider()
+                .getEnrollActivityClassProvider().getNext());
         intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, mToken);
         if (mListener != null) {