Add `rememberViewModel` back for `quickSettingsContainerViewModel`

This `rememberViewModel` was removed to fix the volume slider delay issue. However, the issue is not fully resolved by this change. Adding it back so that it follows best practice.

Bug: b/378513663
Test: manually tested, existing tests should still pass
Flag: com.android.systemui.scene_container
Change-Id: Iff82c09b8ff9505d9285010755d67ea73eb7e917