Draw outline inside the view so it would not be cut off

Before: https://screenshot.googleplex.com/C2iwZxYV3KocTQq
After: https://screenshot.googleplex.com/BC9YYtm8GngssNF

Bug: 310953377
Test: Manual, navigate to the folder icon by keyboard, press enter to open and go to the bottom row app icon
Flag: ACONFIG com.android.launcher3.enable_focus_outline Staging
Change-Id: Iad5a081ef3838d2728f8845c4fa2ef726b2c781b