Update gallery animate item (#1358)

Co-authored-by: Ashley Davies <[email protected]>

conferences-app/src/commonMain/kotlin/io/ashdavies/party/gallery/GalleryScreen.kt

@@ -227,7 +227,7 @@ internal fun GalleryGrid(
                 item = item,
                 onSelect = { onSelect(index) },
                 onExpand = { onExpand(index) },
-                modifier = Modifier.animateItemPlacement(),
+                modifier = Modifier.animateItem(),
                 isSelecting = isSelecting,
             )
         }