Deep Jaws

- added detailed settings for shadows and other graphics aspects;
- added a target level fish icon to the interface;
- changed the behavior when rotating the player's fish;
- the guidebook available in the pause menu;
- four types of jellyfish have been added, inhabiting different biomes and inflicting various damage on fish, such as poisoning, blindness, or shock;
- player will take less damage from enemies;
- cuttlefish and pufferfish are now more nutritious;
- added loading animation.