Prevent extensive recompositions of CollapsableQuickSettingsSTL

Bug: 389985793
Test: Manual, recorded traces with fix and noticed that we would not
 recompose CollapsableQuickSettingsSTL every frame anymore.
Flag: com.android.systemui.qs_ui_refactor_compose_fragment
Change-Id: Ie3624363b31b3fe35402f469447d87400a32e397