Scaffold controller and route

config/locales/de.yml

@@ -217,6 +217,8 @@ de:
       show: Dashboard
     sessions:
       destroy_through_lti: Code-Abgabe
+    statistics:
+      show: "Statistiken"
   consumers:
     show:
       link: Konsument

config/locales/en.yml

@@ -217,6 +217,8 @@ en:
       show: Dashboard
     sessions:
       destroy_through_lti: Code Submission
+    statistics:
+      show: "Statistics"
   consumers:
     show:
       link: Consumer

config/routes.rb

@@ -42,6 +42,8 @@ Rails.application.routes.draw do
 
   get '/help', to: 'application#help'
 
+  get 'statistics/', to: 'statistics#show'
+
   concern :statistics do
     member do
       get :statistics