Fix all Style/BracesAroundHashParameters rubocop issues and remove them from rubocop_todo list

app/controllers/admin/poll/polls_controller.rb

@@ -60,7 +60,7 @@ class Admin::Poll::PollsController < Admin::BaseController
   end
 
   def search_questions
-    @questions = ::Poll::Question.where("poll_id IS ? OR poll_id != ?", nil, @poll.id).search({search: @search}).order(title: :asc)
+    @questions = ::Poll::Question.where("poll_id IS ? OR poll_id != ?", nil, @poll.id).search(search: @search).order(title: :asc)
     respond_to do |format|
       format.js
     end

app/controllers/valuation/spending_proposals_controller.rb

@@ -58,7 +58,7 @@ class Valuation::SpendingProposalsController < Valuation::BaseController
     end
 
     def params_for_current_valuator
-      params.merge({valuator_id: current_user.valuator.id})
+      params.merge(valuator_id: current_user.valuator.id)
     end
 
     def restrict_access_to_assigned_items