Add strings.

en.json

@@ -258,6 +258,9 @@
                     "title": "Overview",
                     "name": "Channel Name",
                     "description": "Channel Description"
+                },
+                "permissions": {
+                    "title": "Permissions"
                 }
             },
             "server_pages": {
@@ -274,6 +277,9 @@
                 },
                 "bans": {
                     "title": "Bans"
+                },
+                "roles": {
+                    "title": "Roles"
                 }
             },
             "tips": {