adds successful proposals list on admin questions index

app/controllers/admin/poll/questions_controller.rb

@@ -9,6 +9,8 @@ class Admin::Poll::QuestionsController < Admin::BaseController
     @search = search_params[:search]
 
     @questions = @questions.search(search_params).page(params[:page]).order("created_at DESC")
+
+    @proposals = Proposal.successful.sort_by_confidence_score
   end
 
   def new
@@ -51,6 +53,10 @@ class Admin::Poll::QuestionsController < Admin::BaseController
     redirect_to admin_questions_path, notice: notice
   end
 
+  def successful?
+    total_votes >= Proposal.votes_needed_for_success
+  end
+
   private
 
     def load_geozones