Minor Update

Changes:

Very minor changes to the game for now. Considering further updates, and an entirely new unrelated game.

• Added the ability to dash with Shift Key. The dash ability can be used once before a cooldown period starts. When it ends, the player can use dash again. At the moment, there's no way to dash directly upwards.
• Collected stars provide a random number of points from 1-4, adds some more variety to player scores.
• Outline around player character removed.
• Restructured and organized code.