Phoning Home "Update 2.1.0.3 GOG"

- Changed the sprint mode to a sprint toggle (read: auto-sprint). Hit the sprint button once and sprint mode is enabled (if energy is above 20%), hit it again and sprint mode is off.
- Reduced the effect of ANI slowing down due to her corrosion level.
- Difficulty balancing: Slightly reduced the damage of the stone giant attacks
- Difficulty balancing: Added a 10% miss rate for the sand worms and tumblers
- Fixed a bug preventing Attractor or Memory Upgrade to get unlocked when specific events or triggers are missed.
- Made sure that Attractor and Thruster are disabled during the endgame sequence.