Use New Tab Page implementation without customization features

[dus7]

Task/Issue URL: https://app.asana.com/0/72649045549333/1208547223289955/f
Tech Design URL:
CC:

Description:

Uses NewTabPageController as a home controller, but removes new tab page customization capabilities based on newTabPageSections feature flag state. Existing features of Home Screen should remain unchanged.

Summary of changes done in this PR:

• SimpleNewTabPageView now serving as a view for new tab page without customization features. Created based on the fully featured NewTabPageView.
• Favorites placeholders and add button are not visible when customization flag is disabled.
• Report action is not added to the browsing menu when link is missing. This prevents showing option which performs no action in case menu is shown on NTP. (cc @afterxleep)
• Favorites data source adapter is listening for display mode changes and updates favorites accordingly.
• Current (old) Dax Onboarding is integrated with the New Tab Page. (cc @alessandroboron)

Steps to test this PR:

Dax onboarding

1. Install fresh app
2. Go through onboarding, make sure Dax dialogs are shown properly on empty tab.

Basic functionality

1. Make sure NTP flag is disabled in debug menu.
2. Without favorites, Dax logo should be visible.
3. Add some favorites.
4. It should be possible to long press to edit/remove and drag and drop to reorder.

Toolbar menu items

1. Check toolbar displays bookmarks icon when NTP sections flag disabled.
2. Enable NTP sections flag in debug menu.
3. Reopen new tab page
4. Ensure browsing menu with shortcuts is available.

Sync

1. Enable sync on two devices.
2. Verify updates for favorites are visible.

Definition of Done (Internal Only):

• Does this PR satisfy our Definition of Done?

Copy Testing:

• Use of correct apostrophes in new copy, ie ’ rather than '

Orientation Testing:

• Portrait
• Landscape

Device Testing:

• iPhone SE (1st Gen)
• iPhone 8
• iPhone X
• iPhone 14 Pro
• iPad

OS Testing:

• iOS 15
• iOS 16
• iOS 17

Theme Testing:

• Light theme
• Dark theme

---

Internal references:

Software Engineering Expectations
Technical Design Template

[github-actions]

	Warnings
⚠️	PR has more than 500 lines of code changing. Consider splitting into smaller PRs if possible.

Generated by 🚫 dangerJS against d061323

[alessandroboron]

@dus7 I went through the onboarding and the dax dialogs are shown properly. Thanks for taking care of this!

[brindy]

LGTM

had some problems with sync at first, but worked subsequently so some kind of race condition not related to this PR.

Also favorites favicons didn't update in real time after the sync, but not too bothered by that.