weapon check convention

[Alivemonstor]

any item even if not weapon containing weapon_ receives serial and quality, also any weapons not containing weapon_ don't receive quality

Description

any item even if not weapon containing weapon_ receives serial and quality, also any weapons not containing weapon_ don't receive quality

Checklist

• [ x ] I have personally loaded this code into an updated qbcore project and checked all of its functionality.
• [ x ] My code fits the style guidelines.
• [ x ] My PR fits the contribution guidelines.

[Jamie9192]

Not loaded and tested, but this seems a more reliable way to ensure an item is a weapon.