Move Orchestrator's Position and change Icon

[dschiller]

Description

If that is technically possible it would be handy to see the Orchestrator Tab next to the Script Tab as users will access the Orchestrator Tab a lot and sometimes even switch between Scripts and Orchestrator - the AssetLib is in the way here kind of.

Also if that is possible and i fully understand that the Orchestrator Icon is holy but maybe there could be a more readable one used, possibly a wrench with circling arrows which fits more to the Godot UI style.

Implementation ideas

[Naros]

While I know it's a hack, one way to achieve this would be to disable the AssetLib option modifying Editor Features:

As for the icon, we'll see if we can find something that aligns with Godot's theme but preserves our intent.