Mobile fix and new level!

Here is a rundown of the new features that I have added:

• Level 2 finished
• Level 3 working on
• Added speed boost
• Added double jump powerup
• Fixed the mobile not display the background on the web (Image was rendered at 4K which web browsers don't like.)

Things I plan on adding:

• Wall jumping
• Much more levels
• More powerups

As stated in the description of this any and all suggestions are taken into account