Update BubbleTextView height to match parent so focus outline drawn could be fully displayed

Design doc: go/launcher-focus-outline
Before: BubbleTextView height is larger than its parent, outline is cropped
https://screenshot.googleplex.com/dYXjWAHS4VzPQdJ
After: BubbleTextView has the same height as its parent Prediction Row, outline is fully shown
https://screenshot.googleplex.com/3eMxPwxiHs9JTTq

Bug: 310953377
Test: Manual
Flag: ACONFIG com.android.launcher3.enable_focus_outline Development
Change-Id: I7bfa4da3b67b4a4abc4dfe9df560dda8d7e9b1bd