Minor post jam update

Minor usability and audio fixes.

• Player now moves 3 times faster - it is now possible to complete the game with 0 frogs lost
• Player facing direction now indicated by an arrow
  • The arrow becomes a X when holding a frog to indicate the throw location
  • Facing direction remains consistent even when the player stops moving
  • Players can now dash when not moving
• Audio changes
  • Intro cinematic now uses a new song ONLYFROG (aka witch chant)
  • End game screen uses an improved version of FrogSong
  • New frog drop sound
  • Frogs now hop 50% more quietly
• Fixed end game screen text layout on 16:9 aspect ratio displays
• Frogs are 10% happier