Post-Jam update!

Finally got around to do a post-jam update based on the feedback!

• Added a "how to play" section with some animations to make it easier to understand
• Added some juicccc, like particles and some subtle animations to make it more fun to play and look at
• Added more visual indications which tile the items move towards
• Ironed out some bugs, e.g. with the difficulty ramp-up
• Added windows & mac builds

Cheers!