- Moved the import statement for `Champion` and `ChampionSkin` models in their respective controllers to improve code organization.
- Refactored image attribute methods in the `Champion` model to use string interpolation for better readability.
- Refactored image attribute methods in the `ChampionSkin` model to use string interpolation for better readability.
This commit improves code organization and readability by refactoring import statements and using string interpolation for image attribute methods.
