Improve public scoreboard UI + make it responsive

app/controllers/contests_controller.rb

@@ -78,6 +78,8 @@ class ContestsController < ApplicationController
     @title = I18n.t("contests.scoreboard.title", name: @contest.name)
     @contestants = @contest.contestants.sort_by { |contestant| [ -contestant.completions.size, contestant.time_seconds ] }
     @puzzles = @contest.puzzles.order(:id)
+    @action_name = t("helpers.buttons.refresh")
+    @action_path = "/public/#{@contest.friendly_id}"
     render :scoreboard
   end