Rename old renewal prp page and question

app/models/form/lettings/pages/referral_general_needs.rb

@@ -1,4 +1,4 @@
-class Form::Lettings::Pages::ReferralPrp < ::Form::Page
+class Form::Lettings::Pages::ReferralGeneralNeeds < ::Form::Page
   def initialize(id, hsh, subsection)
     super
     @id = "referral_prp"
@@ -7,6 +7,6 @@ class Form::Lettings::Pages::ReferralPrp < ::Form::Page
   end
 
   def questions
-    @questions ||= [Form::Lettings::Questions::ReferralPrp.new(nil, nil, self)]
+    @questions ||= [Form::Lettings::Questions::ReferralGeneralNeeds.new(nil, nil, self)]
   end
 end

app/models/form/lettings/questions/referral_general_needs.rb

@@ -1,4 +1,4 @@
-class Form::Lettings::Questions::ReferralPrp < ::Form::Question
+class Form::Lettings::Questions::ReferralGeneralNeeds < ::Form::Question
   def initialize(id, hsh, page)
     super
     @id = "referral"

spec/models/form/lettings/questions/referral_general_needs_spec.rb

@@ -1,6 +1,6 @@
 require "rails_helper"
 
-RSpec.describe Form::Lettings::Questions::ReferralPrp, type: :model do
+RSpec.describe Form::Lettings::Questions::ReferralGeneralNeeds, type: :model do
   subject(:question) { described_class.new(question_id, question_definition, page) }
 
   let(:question_id) { nil }