Steam Deck changes

• Steam Deck button icons are now displayed automatically (provided you have selected Automatic Button Style in the options menu). (Actually this might not be working as intended 😭 Please bear with me!)
• Mouse cursor is now hidden automatically.

Bug Fixes

• Improved stability of lots of Steam functionality. This should help to prevent initialisation problems.
• Removed brief pauses/freezes when the game is being saved.
• Improved a bunch of game code efficiency under the hood.