fix serwowanie toasts.js i error handlery

app.py

@@ -254,6 +254,9 @@ def inject_has_authorized_cookie():
 def require_system_password():
     if request.endpoint is None:
         return
+ 
+    if request.endpoint in ['forbidden', 'not_found', 'internal_error', 'system_auth']:
+        return
     
     if 'authorized' not in request.cookies \
        and request.endpoint != 'system_auth' \