Current implementation of the nudge will show at default position
(bottom left corner) and may extended to other position in the future.
More detail at: go/al-growth-framework-nudge
Bug: 398033012
Test: NudgeControllerTest.*
Flag: com.android.launcher3.enable_growth_nudge
Change-Id: Idff9d62a5b1b26aa1cfbef5817f5425f8e94b7c9
