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
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index 34d8a83..c65a803 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -315,7 +315,8 @@
             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);