Add end-to-end (system) tests (#25461)

spec/support/stories/profile_stories.rb

@@ -9,6 +9,8 @@ module ProfileStories
       email: email, password: password, confirmed_at: confirmed_at,
       account: Fabricate(:account, username: 'bob')
     )
+
+    Web::Setting.where(user: bob).first_or_initialize(user: bob).update!(data: { introductionVersion: 201812160442020 }) if finished_onboarding # rubocop:disable Style/NumericLiterals
   end
 
   def as_a_logged_in_user
@@ -42,4 +44,8 @@ module ProfileStories
   def password
     @password ||= 'password'
   end
+
+  def finished_onboarding
+    @finished_onboarding || false
+  end
 end