enable telescope in production for site admins

[dave-mills]

This PR allows site admins to review the Laravel Telescope logs in production environments.

[dave-mills]

@dan-tang-ssd - to check, you can set your local environment to APP_ENV=prod and APP_DEBUG=false

[dan-tang-ssd]

Update .env file as per advised. Performed testing with positive result.

---

Login as site admin, telescope is accessible

---

Login as institutional admin, telescope is not assessible