Update onboarding cards for post-migration

User Story

As a new user on the new Fenix/Firefox for Android, I want to see onboarding cards that will help me understand the value of key features, so I know the value I will be getting from using this new browser.

Dependency

• Need some solution for Privacy Settings #5905 , but other work could be done.

Acceptance Criteria

1. New What’s new card
2. I can choose whether I want strict or standard tracking protection (Re-purpose the existing TP card to surface ETP modes as a user selected option)
3. I know that I can choose the position of my nav bar when I first start using the browser. Accessibility users will be defaulted to Top nav bar and we will skip this specific onboarding card for this group.
4. When people click on the FAQ link, it should be similar to what Privacy Policy link does (e.g. “custom tab”)
5. Changes to private browsing copy + adding a link to private browsing settings

UX mocks

┆Issue is synchronized with this Jira Task

[cadeyrn]

@andreicristianpetcu These are dummy icons of the Android system bar and not part of Fenix itself, similar to the icons at the bottom.

[apbitner]

@mcarare #6479 is for the settings section. The user will not be able to select ‘Custom’ from the onboarding card. I’ll let @mheubusch weigh in on the copy.

For your second question, “Open settings” should not dismiss onboarding. It should be there when the user returns from settings. I believe the only ways to dismiss onboarding are to run a search or type in a URL, so let’s keep that behavior.