Improved GPU performance and other fixes (Build 6)

Patch Notes - Build 6

Improvements:

• Updated Unity version.

• Improved the nebula performance (GPU)

• Improved the aeroxite cloud performance (GPU)

• Added toggles in the graphic options to enable/disable the background image, stars, debris.

• [Build 6.1] Added the classic movement scheme for gamepads.

Bugs Fixed:

• Fixed autocrafters not visible in the UI after unlocking them.