refactor!: Item changes

- Bump version to 0.3.0
- Moved crate::inventory::item to crate::item
- Made Item.position non-option
- Renamed Item::new_positioned -> Item::new
- Removed old Item::new method
- Changed Inventory.can_fit signature to use item borrow

src/lib.rs

@@ -9,6 +9,7 @@ use bevy_rapier2d::{
 
 pub mod input;
 pub mod inventory;
+pub mod item;
 pub mod layout;
 pub mod player;
 #[cfg(test)]