Change the editor update spinner color when updating continuously
Change the editor update spinner color when updating continuously

Updating continuously should only be enabled for troubleshooting
purposes, as it uses a lot of CPU/GPU power.

The update spinner is now displayed in red when the Update Continuously
editor setting is enabled.

(cherry picked from commit a97c5b50db4f64e2158df3d6586036442ce4cbbd)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot