[meta] Onboarding optimisations

[rtestard]

Why/User Benefit/User Problem

Optimize new user retention by helping users discover key capabilities that will help them keep using Focus after initial onboarding.

What / Requirements

We have identified 2 bodies of work to help drive new user retention and engagement through new user onboarding: Set to default Search Widget

Acceptance Criteria (how do I know when I’m done?)

Update onboarding screen 1 Introduce onboarding screen 2
Replace "Go to Settings" CFR with "Start your private browsing session" CFR Update the tracking protection tooltip Update the trash can CFR Introduce an onboarding step to promote widget addition Custom set to default onboarding page for Huawei users Nimbus support for A/B testing the new onboarding