fix: reloading magazine properly shows non-empty magazines with different, but compatible ammo

[usagirei]

Purpose of change (The Why)

• Resolves Guns must be loaded with an empty magazine that accepts both ammo types to switch ammo types #5623
• Resolves The 1911-460 pistol cannot be reloaded with magazines that have ammo in them #5594

Describe the solution (The How)

Magazine selection logic had a minor iteration oversight:
Instead of considering accepting a non-empty magazine if the contained ammunition matched any of the supported ammo types, the magazine was rejected it if it didn't match all of them,

Describe alternatives you've considered

Insert empty magazines in the weapon and magic-reload the rounds inside it without taking the magazine out.

Testing

Vanilla:

• Loaded game, spawned 1911-460, and 3 mags, one empty, one with 460 and one with 45
• Reloading works as expected with any given combination

Modded:

• Tested with Modern Weapon Pack Extended SCAR-H, works as expected too.

Additional context

Checklist

Mandatory

• I wrote the PR title in conventional commit format.
• I ran the code formatter.
• I linked any relevant issues using github keyword syntax like closes #1234 in Summary of the PR so it can be closed automatically.
• I've committed my changes to new branch that isn't main so it won't cause conflict when updating main branch later.
• I understand that, unless specified otherwise, my contributions will fall under the AGPL v3.0 and/or CC-BY-SA 4.0 licenses

[scarf005]

1. spawned 1911-460, 3 m1911 magazines
2. unloaded two, loaded one with .460 Rowlands
3. attempted to reload 1911-460
4. confirmed i could reload 3 magazines

seems to work on my machine.