PERF: use cached reports for dashboard if available

app/controllers/admin/dashboard_next_controller.rb

@@ -2,7 +2,7 @@ require 'disk_space'
 
 class Admin::DashboardNextController < Admin::AdminController
   def index
-    dashboard_data = AdminDashboardNextData.fetch_stats
+    dashboard_data = AdminDashboardNextData.fetch_cached_stats
     dashboard_data[:disk_space] = DiskSpace.cached_stats
     render json: dashboard_data
   end

app/jobs/scheduled/dashboard_stats.rb

@@ -14,7 +14,9 @@ module Jobs
         GroupMessage.create(Group[:admins].name, :dashboard_problems, limit_once_per: 7.days.to_i)
       end
 
+      # TODO: decide if we want to keep caching this every 30 minutes
       AdminDashboardData.refresh_stats
+      AdminDashboardNextData.refresh_stats
     end
   end
 end