First small update for the demo!!

Changelog:

• Fixed a bug where pausing in-between exiting a level caused the game to freeze & softlock.
  
• Fixed a bug where you could press pause before Venus introduces the level.
  
• Fixed an issue where the timer would count down just a few seconds more during the mid-level loading transitions.
• Fixed an issue where the ending of the loading screen music was mapped to the sound effect channel instead of the music channel.
• Made the Space Roach sound effect slightly louder.