Add person 1 gender identity page to subsection

app/models/form/sales/subsections/household_characteristics.rb

@@ -29,6 +29,8 @@ class Form::Sales::Subsections::HouseholdCharacteristics < ::Form::Subsection
       Form::Sales::Pages::Buyer2LiveInProperty.new(nil, nil, self),
       Form::Sales::Pages::NumberOfOthersInProperty.new(nil, nil, self),
       Form::Sales::Pages::Person1Age.new(nil, nil, self),
+      Form::Sales::Pages::GenderIdentity2SingleBuyer.new(nil, nil, self),
+      Form::Sales::Pages::GenderIdentity3.new(nil, nil, self),
       Form::Sales::Pages::Person2Known.new(nil, nil, self),
       Form::Sales::Pages::Person2Age.new(nil, nil, self),
       Form::Sales::Pages::Person3Known.new(nil, nil, self),

spec/models/form/sales/subsections/household_characteristics_spec.rb

@@ -34,6 +34,8 @@ RSpec.describe Form::Sales::Subsections::HouseholdCharacteristics, type: :model
         buyer_2_live_in_property
         number_of_others_in_property
         person_1_age
+        person_1_gender_identity
+        person_1_gender_identity
         person_2_known
         person_2_age
         person_3_known