Minor Update

This is a minor but nessecary update to the game that contains a QoL fix as well as significant loading/performance improvements.

• Fixed the mission complete/reset dialogue not showing up when a mission is completed
• Optimized the scene resources and file system, game should now load up to 3x faster and is much smaller
• Some refactoring of the physics calculations and managing _process vs _physics_process has resulted in a 10-20% performance increase, particularly with older hardware.

Thanks for your patience, and enjoy the game!