"Wild card" V2 Katana/Talon Mag Adapter

These updates to the Wild Card adapter by /u/Captain-Slug are to improve handling after testing by Van James. The Sides were scalloped to accommodate the mag's feed lips flex when being inserted over a closed bolt, the over-insertion stops were reinforced, and the front was shortened to help with insertion into a stock blaster as well as katana/talon drop.

The over-insertion stops couldn't be pushed further to more reliably prevent over insertion without adversely affecting either printability or feed reliability.