NTP: Clean up FocusedView (#4984)

Task/Issue URL: https://app.asana.com/0/0/1208220396571848/f

### Description
Clean up of the FocusedView and the FavouritesView for use in both NTP
and legacy NTP

### Steps to test this PR

_Pixels_
- [x] Add a Favourite
- [x] Open Focused View
- [x] Long press on a favourite and tap on Edit
- [x] Verify m_edit_favourite_dialog_shown sent
- [x] Verify m_edit_favourite_dialog_shown_daily sent
- [x] Navigate back
- [x] Long press on a favourite and tap on Remote Favourite
- [x] Wait for favourite to be removed (snackbar dissappear)
- [x] Verify m_favorite_removed sent
- [x] Add another favourite
- [x] Long press on a favourite and tap on Delete
- [x] Wait for favourite to be deleted (snackbar dissappear)
- [x] Verify m_favorite_deleted sent
- [x] Repeat same actions but this time from New Tab Page
- [x] Verify pixels are still sent

_Legacy NTP_
Use https://www.jsonblob.com/api/1280863591262445568 so you’re not part
of the experiment
Make sure you are not a reinstaller and using playDebug flavour
- [x] Open New Tab
- [x] Verify Dax Logo is visible
- [x] Add a favourite and open New Tab again
- [x] Verify favourites are visible
- [x] Verify sections are not visible (this verifies you see the legacy
NTP)
- [x] Remove favourite (wait for the snackbar to disappear)
- [x] Verify Dax Logo is visible

_New NTP_
Use https://www.jsonblob.com/api/1270091613312245760 in Remote Config so
you’re part of the experiment
Make sure you are not a reinstaller and using playDebug flavour
- [x] Open New Tab
- [x] Verify Favourites placeholders and shortcuts are visible
- [x] Add a favourite and open New Tab again
- [x] Verify favourites are visible
- [x] Remove favourite (wait for the snackbar to disappear)
- [x] Verify Favourites placeholders and shortcuts are visible
- [x] Verify Dax logo is not visible

app/src/main/java/com/duckduckgo/app/browser/BrowserTabFragment.kt

@@ -148,7 +148,6 @@ import com.duckduckgo.app.browser.menu.BrowserPopupMenu
 import com.duckduckgo.app.browser.model.BasicAuthenticationCredentials
 import com.duckduckgo.app.browser.model.BasicAuthenticationRequest
 import com.duckduckgo.app.browser.model.LongPressTarget
-import com.duckduckgo.app.browser.newtab.FocusedViewProvider
 import com.duckduckgo.app.browser.newtab.NewTabPageProvider
 import com.duckduckgo.app.browser.omnibar.OmnibarScrolling
 import com.duckduckgo.app.browser.omnibar.animations.BrowserTrackersAnimatorHelper
@@ -534,9 +533,6 @@ class BrowserTabFragment :
     @Inject
     lateinit var newTabPageProvider: NewTabPageProvider
 
-    @Inject
-    lateinit var focusedViewProvider: FocusedViewProvider
-
     @Inject
     lateinit var singlePrintSafeguardFeature: SinglePrintSafeguardFeature
 
@@ -3752,26 +3748,11 @@ class BrowserTabFragment :
         }
 
         private fun showFocusedView() {
-            binding.focusedViewContainerLayout.show()
-            configureFocusedView()
-        }
-
-        private fun configureFocusedView() {
-            if (binding.focusedViewContainerLayout.childCount == 0) {
-                focusedViewProvider.provideFocusedViewVersion().onEach { focusedView ->
-                    binding.focusedViewContainerLayout.addView(
-                        focusedView.getView(requireContext()),
-                        LayoutParams(
-                            LayoutParams.MATCH_PARENT,
-                            LayoutParams.MATCH_PARENT,
-                        ),
-                    )
-                }.launchIn(lifecycleScope)
-            }
+            binding.focusedView.show()
         }
 
         private fun hideFocusedView() {
-            binding.focusedViewContainerLayout.gone()
+            binding.focusedView.gone()
         }
 
         fun renderOmnibar(viewState: OmnibarViewState) {