[Catalyst] Media volume migration

Bug: 364898461
Test: atest MediaVolumePreferenceTest
Flag: com.android.settings.flags.catalyst_sound_screen
Change-Id: I172f336a7d1c843d071dd920d29aa35b4a1a8aaf

src/com/android/settings/notification/SoundScreen.kt

@@ -49,6 +49,7 @@ class SoundScreen : PreferenceScreenCreator, PreferenceIconProvider {
 
     override fun getPreferenceHierarchy(context: Context) =
         preferenceHierarchy(this) {
+            +MediaVolumePreference() order -180
             +CallVolumePreference() order -170
             +DialPadTonePreference() order -50
         }