Function handleChange

frontend/src/pages/SecretsManager.tsx:139–145

(field: keyof FormState)

  const handleChange =
    (field: keyof FormState) =>
    (event: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>) => {
      setFormState((prev) => ({
        ...prev,
        [field]: event.target.value,
      }));
    };

  const handleEditChange =
    (field: keyof EditFormState) =>