Updated routes for admins dashboard

• Updated:
- routes for admins dashboard (expenses, group categories, promotions, trending hashtags) that were in the /settings path but are now in the /admin path
- /filters to be in /settings/filters

• Removed:
- authorize_follow route

app/controllers/admin/promotions_controller.rb

@@ -0,0 +1,56 @@
+class Admin::PromotionsController < Admin::BaseController
+	before_action :set_promotion, except: [:index, :new, :create]
+	
+	def index
+		@promotions = Promotion.all
+	end
+
+	def new
+		@promotion = Promotion.new
+	end
+
+	def create
+		@promotion = Promotion.new(resource_params)
+		
+		if @promotion.save
+			log_action :create, @promotion
+			redirect_to admin_promotions_path, notice: I18n.t('promotions.created_msg')
+		else
+			render :new
+		end
+	  end
+
+	def edit
+	end
+
+	def update
+		if @promotion.update(resource_params)
+			log_action :update, @promotion
+			flash[:notice] = I18n.t('promotions.updated_msg')
+		else
+			flash[:alert] =  I18n.t('promotions.update_failed_msg')
+		end
+		redirect_to admin_promotions_path
+	end
+
+	def destroy
+		@promotion.destroy!
+		log_action :destroy, @promotion
+		flash[:notice] = I18n.t('promotions.destroyed_msg')
+		redirect_to admin_promotions_path
+	end
+
+	private
+
+	def set_promotion
+		@promotion = Promotion.find(params[:id])
+	end
+
+	def set_filter_params
+		@filter_params = filter_params.to_hash.symbolize_keys
+	end
+
+	def resource_params
+		params.require(:promotion).permit(:expires_at, :status_id, :timeline_id, :position)
+	end
+end