Always enable assistant builder for admins

[maxesse]

Hello! I was thinking it might be a good idea to always enable the visibility of the assistant builder panel for admins? Perhaps by adding a third option to the disableBuilder parameter in librechat.yaml? (true, false, adminOnly)
For normal users it's not a great idea to have the builder enabled, as they can go and remove/add tools to it, and ruin the experience for everyone else. On the other hand, admins sometimes really need it.
At the moment, to avoid having to turn it on and off in production, I do the changes on a separate dev instance or directly in the OpenAI backend, but there is ONE thing you can't do elsewhere: setting an assistant profile picture. If you set it on another Librechat instance, the URL to the picture will obviously be broken.

[maxesse]

Hi @danny-avila - I made the change myself on my own fork. I was thinking to send a pull request, but I'm not sure whether it would fit with your roadmap re the admin panel etc. - also I didn't change how disableBuilder works, it's still a boolean. Let me know if you think it'd be a good addition, or just leave it?