Aesthetic Overhaul

It was about time I overhauled the aesthetics of the game. I tried to make the textures more consistent and the models more aesthetic. I also added new sounds, replaced old ones, and added a couple particle effects in. With all that, I find the game much more enjoyable to play.

On top of visual changes, I added optional walls around the holes so you don't always fall out as well as some new obstacles, some of them which move.

Lastly is the list of smaller changes:

• Fixed ball bumping on tile seams by merging vertices during generation
• Updated camera collider to only avoid the ground
• Added an shader which draws obstructed parts of the ball on top to always be visible
• Added an icon for the desktop version

The cover image shows the debug view of the vertex merging; drawing a line a each vertex.