feat: allow translation text and title text to display currency formatting even when not a log field

app/helpers/interruption_screen_helper.rb

@@ -10,7 +10,7 @@ module InterruptionScreenHelper
               else
                 lettings_log.public_send(argument["key"])
               end
-      translation_params[argument["i18n_template"].to_sym] = value
+      translation_params[argument["i18n_template"].to_sym] = argument["prefix"] == "£" ? "£#{ActionController::Base.helpers.number_to_currency(value, delimiter: ',', format: '%n')}" : value
     end
 
     begin
@@ -33,7 +33,7 @@ module InterruptionScreenHelper
               else
                 lettings_log.public_send(argument["key"])
               end
-      translation_params[argument["i18n_template"].to_sym] = value
+      translation_params[argument["i18n_template"].to_sym] = argument["prefix"] == "£" ? "£#{ActionController::Base.helpers.number_to_currency(value, delimiter: ',', format: '%n')}" : value
     end
     I18n.t(title_text["translation"], **translation_params).to_s
   end

app/models/form/sales/pages/about_price_shared_ownership_value_check.rb

@@ -24,6 +24,7 @@ class Form::Sales::Pages::AboutPriceSharedOwnershipValueCheck < ::Form::Page
           "key" => "purchase_price_soft_min_or_soft_max",
           "label" => false,
           "i18n_template" => "soft_min_or_soft_max",
+          "prefix" => "£",
         },
         {
           "key" => "purchase_price_min_or_max_text",

config/locales/en.yml

@@ -435,7 +435,7 @@ en:
         hint_text: "The maximum rent expected for this type of property in this local authority is £%{soft_max_for_period}"
     purchase_price:
       title_text: "You told us the purchase price is %{value}"
-      hint_text: "The %{min_or_max} purchase price expected for this type of property in this local authority is £%{soft_min_or_soft_max}"
+      hint_text: "The %{min_or_max} purchase price expected for this type of property in this local authority is %{soft_min_or_soft_max}"
     retirement:
       min:
         title: "You told us this person is under %{age} and retired"