Adding an id to the resolve grid item

This makes it reliably searchable from tests

Test: presubmit
Bug: 252851229
Change-Id: I10626bcf26bbe54a7196051a3adf2467a3d65127

core/res/res/layout/resolve_grid_item.xml

@@ -17,6 +17,7 @@
 */
 -->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:id="@+id/item"
               android:orientation="vertical"
               android:layout_width="match_parent"
               android:layout_height="wrap_content"