First Post-Jam version released

The jam version felt a bit unfinished, so I've updated it with new mechanics, levels, and most importantly, sounds. Here's a full list of changes:

- Sound effects added

- Small adjustments can be made mid-jump by holding A or D

- 3 new levels have been added (previous levels 1 and 2 were changed to 3 and 4, with completely new levels being 1, 2, and 5.)