Add a public rights page to view which permissions are granted to which role, update Font Awesome to 5.13

apps/permission/urls.py

@@ -0,0 +1,10 @@
+# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from django.urls import path
+from permission.views import RightsView
+
+app_name = 'permission'
+urlpatterns = [
+    path('rights', RightsView.as_view(), name="rights"),
+]