2x AAA Battery Case for Maker's Beginner Kit

This remix is designed for building my new project with the Maker's Beginner Kit using just 2x AAA batteries. The official MakerWorld model only supports 4x AAA batteries, so I adapted it into a compact 2x AAA holder. I would like to share with anyone who also needs a smaller option. The required parts and assembly steps remain identical to the original 4x AAA battery case.