1.1.0: Post-jam update

The jam is over and it's time for the first update!

• Hold Z to skip cutscenes
  
• Add "Continue" to the story
• Show controls for new players
• Add "Return to Menu" to retry screen
• Add new difficulty options instead of just practice mode: Intended, Easier, Practice, No-hit
• Extend the Extra Story fight
• Make all fights less cheesable (sorry 😉)
• Fix dithering alignment being off-by-one in rare cases