[fenix] No Issue: Create a method to "finish onboarding" in CI

If the intent that starts the HomeActivity includes an extra
boolean flag named finishonboarding and it is set to true,
Fenix will "finish onboarding".

app/src/main/java/org/mozilla/fenix/HomeActivity.kt

@@ -52,6 +52,7 @@ import org.mozilla.fenix.home.intent.SpeechProcessingIntentProcessor
 import org.mozilla.fenix.home.intent.StartSearchIntentProcessor
 import org.mozilla.fenix.library.bookmarks.BookmarkFragmentDirections
 import org.mozilla.fenix.library.history.HistoryFragmentDirections
+import org.mozilla.fenix.onboarding.FenixOnboarding
 import org.mozilla.fenix.perf.HotStartPerformanceMonitor
 import org.mozilla.fenix.search.SearchFragmentDirections
 import org.mozilla.fenix.settings.about.AboutFragmentDirections
@@ -97,6 +98,10 @@ open class HomeActivity : AppCompatActivity() {
 
         setupToolbarAndNavigation()
 
+        if (intent.getBooleanExtra(EXTRA_FINISH_ONBOARDING, false)) {
+            FenixOnboarding(this).finish()
+        }
+
         if (settings().isTelemetryEnabled) {
             lifecycle.addObserver(BreadcrumbsRecorder(components.analytics.crashReporter,
                 navHost.navController, ::getBreadcrumbMessage))
@@ -355,5 +360,6 @@ open class HomeActivity : AppCompatActivity() {
         const val PRIVATE_BROWSING_MODE = "private_browsing_mode"
         const val EXTRA_DELETE_PRIVATE_TABS = "notification_delete_and_open"
         const val EXTRA_OPENED_FROM_NOTIFICATION = "notification_open"
+        const val EXTRA_FINISH_ONBOARDING = "finishonboarding"
     }
 }