Add savings saof validation page to the income subsection

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

@@ -19,6 +19,7 @@ class Form::Sales::Subsections::IncomeBenefitsAndSavings < ::Form::Subsection
       Form::Sales::Pages::Buyer2Mortgage.new(nil, nil, self),
       Form::Sales::Pages::MortgageValueCheck.new("buyer_2_mortgage_value_check", nil, self),
       Form::Sales::Pages::Savings.new(nil, nil, self),
+      Form::Sales::Pages::SavingsValueCheck.new("savings_value_check", nil, self),
       Form::Sales::Pages::PreviousOwnership.new(nil, nil, self),
     ]
   end

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

@@ -24,6 +24,7 @@ RSpec.describe Form::Sales::Subsections::IncomeBenefitsAndSavings, type: :model
         buyer_2_mortgage
         buyer_2_mortgage_value_check
         savings
+        savings_value_check
         previous_ownership
       ],
     )