Boss "fight" update

What's Changed

• Update gui.py by @CaptainStabs in #7
• Fix dates by @CaptainStabs in #10
• Add secret boop button (no cheating) by @CaptainStabs in #12
• Add sounds and funny codes by @GameDevKitY in #11
• Add Bossfight + Audio by @CaptainStabs in #13
• Properly licensed the deer image
• Fixed audio crash

New Contributors

• @CaptainStabs made their first contribution in #7 (This is a lie)

Full Changelog: v0.0.4...V0.0.5