bugfixes 1.1

hii ^^

unfortunately the early versions of katti had couple of bugs and things that didn't quite work right
but those should be fixed now!

changelog:

• the movement line should now disappear when you press the undo button
  (so no longer time-paradoxes, hopefully)
• the game should no longer crash after the ending cutscene(s)
  (a bit smoother game over)
• you can now rotate green tiles by holding them
  (now it should be playable on mobile? maybe? hii)

thx hymeji, yourface588 & mazax for reporting these <3

and thx everyone for playing katti ^^

with flowers,
kultisti ✿