Avoid using animateItem on selected tiles

Changing the span of a lazy grid item using the animateItem modifier causes it to "jump" position in RTL layouts.
This modifier isn't actually needed for selected tiles since they can only be resized, not moved. A quick workaround for this issue is to only use animateItem on unselected tiles

Test: manually resizing in LTR and RTL
Flag: com.android.systemui.qs_ui_refactor_compose_fragment
Bug: 411560538
Change-Id: I746499ded478f181a501956c7cbf5afe45d1d7f8