Description

• Convert uses of items to repositories.
• Removes item_fieldlist.h since we will no longer use it.

Testing

Items/Stats Loading

Checklist

• I have tested my changes
• I have performed a self-review of my code. Ensuring variables, functions and methods are named in a human-readable way, comments are added only where naming of variables, functions and methods can't give enough context.
• I own the changes of my code and take responsibility for the potential issues that occur