Use insets and hotseatCellHeightPx to set search container height.

In a previous refactor, I mistakenly used hotseatBarHeightPx instead of
hotseatCellHeightPx.

Bug: 32176631
Change-Id: I53ef8fa29a6980dcb33bb979d1bed98317c8ade2

src/com/android/launcher3/allapps/AllAppsContainerView.java

@@ -315,7 +315,8 @@ public class AllAppsContainerView extends BaseContainerView implements DragSourc
             if (!grid.isVerticalBarLayout()) {
                 MarginLayoutParams searchContainerLp =
                         (MarginLayoutParams) mSearchContainer.getLayoutParams();
-                searchContainerLp.height = grid.hotseatBarHeightPx;
+                searchContainerLp.height = mLauncher.getDragLayer().getInsets().top
+                        + grid.hotseatCellHeightPx;
                 mSearchContainer.setLayoutParams(searchContainerLp);
             }
             super.onMeasure(widthMeasureSpec, heightMeasureSpec);