Increase predicted app row by 4dp to be same as SEARCH_RESULT_APP_ROW

Verified that there should be no jumping going on in the top app row between A-Z list and Toast.

bug: 312781931
Test: manual -video:
https://drive.google.com/file/d/11GX-5mVr5BoZY29IyX5FvrIA_yT57MOJ/view?usp=sharing
Flag: None

Change-Id: I5c35c04eb500f52780b0b77c542e0a861346a3fd