adding list of user PROTO

frontend/public/i18n/EN.txt

@@ -26,6 +26,8 @@ app.inscription.requests=Inscription Requests
 app.manage.courses=Manage Courses
 app.language=Language
 app.manage.profile=Manage profile
+app.studentList=Students List
+app.users=Users
 request.moreInfos=More Infos
 request.accept=Accept
 request.refuse=Refuse