Do not override SUW Glif theme when onApplyThemeResource() callback

1. Accodring to settings & setupdesign lib theme architecture
Only force apply sytle SetupWizardPartnerResource for current
activity/contextThemeWrapper is sufficient, override GlifV3Theme
again will cause incorrect resource mapping of private attributes.

2. Set Theme_AlertDialog style for AlertDialog in for Material design
- FingerprintEnrollEnrolling
- FingerprintEnrollFindSensor

3. Add test for AlertDialog theme, and fix broken test cases

Fixes: 245684949
Bug: 249789759
Bug: 248994476
Test: manual in SUW `adb shell cmd uimode night yes` and check visual
Test: manual in SUW enrolling check timeout dialog apply theme
Test: manual in SUW enroll UDFPS tips lottie view showing expectedly
Test: manual in SUW enroll UDFPS landscape showing correct layout
Test: m RunSettingsRoboTests -j30 ROBOTEST_FILTER= \
      SetupFingerprintEnrollFindSensorTest
Test: m RunSettingsRoboTests -j30 ROBOTEST_FILTER= \
      FingerprintEnrollEnrollingTest
Test: m RunSettingsRoboTests -j30 ROBOTEST_FILTER= \
      FingerprintEnrollFindSensorTest
Change-Id: I17cbf26e38318e6681ba124d23bf86317a0f1e1d

src/com/android/settings/biometrics/fingerprint/SetupFingerprintEnrollFindSensor.java

@@ -77,7 +77,7 @@ public class SetupFingerprintEnrollFindSensor extends FingerprintEnrollFindSenso
 
         @NonNull
         public AlertDialog.Builder onCreateDialogBuilder() {
-            return new AlertDialog.Builder(getActivity())
+            return new AlertDialog.Builder(getActivity(), R.style.Theme_AlertDialog)
                     .setTitle(R.string.setup_fingerprint_enroll_skip_title)
                     .setPositiveButton(R.string.skip_anyway_button_label, this)
                     .setNegativeButton(R.string.go_back_button_label, this)