Fix two-panel issue in tablet

Keep the logic same as BlockingPrefWithSliceController.

BUG: 343317785
Test: atest BluetoothDeviceDetailsViewModelTest
Flag: com.android.settings.flags.enable_bluetooth_device_details_polish
Change-Id: I77e62479def433869ae5e93987ec7069cc61173a

tests/robotests/src/com/android/settings/bluetooth/ui/view/DeviceDetailsFragmentFormatterTest.kt

@@ -178,11 +178,9 @@ class DeviceDetailsFragmentFormatterTest {
             }.launchIn(testScope.backgroundScope)
             delay(100)
             runCurrent()
-            helpPreference!!.onClick()
             ShadowLooper.idleMainLooper()
 
-            val shadowActivity = Shadows.shadowOf(fragmentActivity)
-            assertThat(shadowActivity.nextStartedActivity).isSameInstanceAs(intent)
+            assertThat(helpPreference?.intent).isSameInstanceAs(intent)
         }
     }