settings: fix permission matrix to totally ignore internal roles (#38836)

wcs/admin/settings.py

@@ -565,10 +565,8 @@ class SettingsDirectory(QommonSettingsDirectory):
 
         rows = []
         value = []
-        roles = list(Role.select(order_by='name'))
+        roles = [x for x in Role.select(order_by='name') if not role.is_internal()]
         for role in roles:
-            if role.is_internal():
-                continue
             rows.append(role.name)
             value.append([role.allows_backoffice_access])
             for k in permission_keys: