💻 v0.12 changes

• Tutorial fight is easier ; less movement by the scientist, more forgiving aiming for the player.
  
• Besides footsteps, there's now handsteps, which should make navigating corridors easier.
  
• Added mouse sensitivity hotkeys.
  
• NPCs can interrupt their own voices when they have something more important to say.
  
• Improved wall placement to help guide the player towards the intended goals.
  
• Under-the-hood improvements for even smaller patches (they usually are a few hundred KBs).
  
• Some logical errors that prevented you from answering during the menu have been fixed.