Miscellaneous updates

Recent changes: 

 1. Essences will return to their original positions after a small period of time (they will start to shake and 1 second later they will start to move back to their original positions)

2. Squits (square essences) now snap to other squits a little better.

3. The Player and their hitbox is now a square instead of a circle to make platforming slightly easier

4. the position where the absorption/placement bullet starts from is now the same position as the aiming reticle.

5. absorbing and placing essences now uses the same mouse click (left mouse click) instead of two separate clicks.