Reduce changelog entries generated by dev seeds

Since we were saving the same budget investments several times, once for
every language, we were creating more than 1000 changelog entries.

Assigning the language attributes when creating the investments
generates less entries, making it easier to work with them.

db/dev_seeds/budgets.rb

@@ -121,13 +121,16 @@ section "Creating Investments" do
   100.times do
     heading = Budget::Heading.all.sample
 
-    investment = Budget::Investment.create!(
+    translation_attributes = random_locales.each_with_object({}) do |locale, attributes|
+      attributes["title_#{locale.to_s.underscore}"] = "Title for locale #{locale}"
+      attributes["description_#{locale.to_s.underscore}"] = "<p>Description for locale #{locale}</p>"
+    end
+
+    investment = Budget::Investment.create!({
       author: User.all.sample,
       heading: heading,
       group: heading.group,
       budget: heading.group.budget,
-      title: Faker::Lorem.sentence(3).truncate(60),
-      description: "<p>#{Faker::Lorem.paragraphs.join("</p><p>")}</p>",
       created_at: rand((Time.current - 1.week)..Time.current),
       feasibility: %w[undecided unfeasible feasible feasible feasible feasible].sample,
       unfeasibility_explanation: Faker::Lorem.paragraph,
@@ -136,15 +139,7 @@ section "Creating Investments" do
       price: rand(1..100) * 100000,
       skip_map: "1",
       terms_of_service: "1"
-    )
-
-    random_locales.map do |locale|
-      Globalize.with_locale(locale) do
-        investment.title = "Title for locale #{locale}"
-        investment.description = "<p>Description for locale #{locale}</p>"
-        investment.save!
-      end
-    end
+    }.merge(translation_attributes))
 
     add_image_to(investment) if Random.rand > 0.5
   end