Fix banners in user pages

Banners were not been shown in certain pages; now
they are.

Spec to check if the banner is been shown correctly
added. Before it was in admins specs, now it has it's
own spec out of admins folder.

app/controllers/budgets_controller.rb

@@ -16,6 +16,7 @@ class BudgetsController < ApplicationController
   def index
     @finished_budgets = @budgets.finished.order(created_at: :desc)
     @budgets_coordinates = current_budget_map_locations
+    @banners = Banner.in_section('budgets').with_active
   end
 
 end

app/controllers/concerns/commentable_actions.rb

@@ -16,7 +16,7 @@ module CommentableActions
     index_customization if index_customization.present?
 
     @tag_cloud = tag_cloud
-    @banners = Banner.with_active
+    @banners = Banner.in_section(section(resource_model.name)).with_active
 
     set_resource_votes(@resources)
 
@@ -114,4 +114,13 @@ module CommentableActions
       nil
     end
 
+    def section(resource_name)
+      case resource_name
+      when "Proposal"
+        'proposals'
+      when "Debate"
+        'debates'
+      end
+    end
+
 end

app/controllers/pages_controller.rb

@@ -3,6 +3,7 @@ class PagesController < ApplicationController
 
   def show
     @custom_page = SiteCustomization::Page.published.find_by(slug: params[:id])
+    @banners = Banner.in_section('help_page').with_active
 
     if @custom_page.present?
       render action: :custom_page

app/controllers/welcome_controller.rb

@@ -8,6 +8,7 @@ class WelcomeController < ApplicationController
     @header = Widget::Card.header.first
     @feeds = Widget::Feed.active
     @cards = Widget::Card.body
+    @banners = Banner.in_section('homepage').with_active
   end
 
   def welcome