Demo Hotfix

Hotfix for the Sandustry Demo has been released! Patch notes:

• Most simulation crashes should now be resolved. If your game is still broken or bricked, please export a save and send it to me. It would be a huge help!

• You can now descend by pressing S.

• The Filter Config can now be closed with Escape.

• Actually implemented the key binding for Boost (previously hardcoded to W).

• Desktop icon should now be the actual game icon.

Unfortunately I wasn't able to fix the issue with the Mouse Back button. If anyone here is an Electron expert, please let me know how I can disable it!