unaccents Debate.search terms and tests that

app/models/debate.rb

@@ -138,7 +138,7 @@ class Debate < ActiveRecord::Base
   end
 
   def self.search(terms)
-    terms.present? ? where("title ILIKE ? OR description ILIKE ?", "%#{terms}%", "%#{terms}%") : none
+    terms.present? ? where("unaccent(title) ILIKE unaccent(?) OR unaccent(description) ILIKE unaccent(?)", "%#{terms}%", "%#{terms}%") : none
   end
 
   def conflictive?

spec/features/debates_spec.rb

@@ -439,10 +439,10 @@ feature 'Debates' do
     debate1 = create(:debate, title: "Show me what you got")
     debate2 = create(:debate, title: "Get Schwifty")
     debate3 = create(:debate)
-    debate4 = create(:debate, description: "Schwifty in here")
+    debate4 = create(:debate, description: "Schwíftÿ in here")
 
     visit debates_path
-    fill_in "search", with: "Schwifty"
+    fill_in "search", with: "Schwìfty"
     click_button "Search"
 
     within("#debates") do