Cleanup more `SpriteComponent` warnings (part 2) (#37527)

Cleanup more `SpriteComponent` warnings (part 2) (#37527)

* Cleanup warnings in MagazineVisualsSpriteTest

* Cleanup warnings in WiresVisualizerSystem

* Cleanup warnings in GunSystem.SpentAmmo

* Cleanup warnings in GunSystem

* Cleanup warnings in GunSystem.ChamberMagazine

* Cleanup warnings in MeleeWeaponSystem.Effects

* Cleanup warnings in ToggleableLightVisualsSystem

* Cleanup warnings in StatusIconOverlay

* Cleanup warnings in SpriteFadeSystem

* Cleanup warnings in PdaVisualizerSystem

* Cleanup warnings in EnvelopeSystem

* Cleanup warnings in MechSystem

* Cleanup warnings in MappingOverlay

* Cleanup warnings in LockVisualizerSystem

* Cleanup warnings in DragDropSystem

* Cleanup warnings in GhostSystem

* Cleanup warnings in TriggerSystem.Proximity

* Cleanup warnings in DragonSystem

* Cleanup warnings in PortableScrubberVisualsSystem

* File-scoped namespace for PortableScrubberVisualsSystem