Sega Game Gear Cartridge Case revised

This is a remix from the case found here: https://www.thingiverse.com/thing:6508085

What was done:

• Added 2 prongs to stop the case halfs from sliding from side to side
• Added 0.5mm to the brim to have the cases close better / with no gaps
• Changed the position and size of the tabs that hold the cart in place