v0.51 - New level select, Equippable goldfish

v0.51 is released~

New level select portal and UI!

Goldfish now has a gameplay effect and will flop around. You can now equip gold fish to bring with you on your runs!

Changelog:

• - Add new level select panel
• - Goldfish now has an effect: +3 starting water per level
• - Goldfish can now be equipped
• - Goldfish can now wander on your home
• - Reduce pet goldfish size: 0.33 -> 0.28