Cleanup of resolves and usings. (#39865)

* commit

* commit

Content.Client/Weapons/Ranged/Systems/GunSystem.cs

@@ -30,6 +30,7 @@ public sealed partial class GunSystem : SharedGunSystem
 {
     [Dependency] private readonly IEyeManager _eyeManager = default!;
     [Dependency] private readonly IInputManager _inputManager = default!;
+    [Dependency] private readonly IOverlayManager _overlayManager = default!;
     [Dependency] private readonly IPlayerManager _player = default!;
     [Dependency] private readonly IStateManager _state = default!;
     [Dependency] private readonly AnimationPlayerSystem _animPlayer = default!;
@@ -50,11 +51,10 @@ public sealed partial class GunSystem : SharedGunSystem
                 return;
 
             _spreadOverlay = value;
-            var overlayManager = IoCManager.Resolve<IOverlayManager>();
 
             if (_spreadOverlay)
             {
-                overlayManager.AddOverlay(new GunSpreadOverlay(
+                _overlayManager.AddOverlay(new GunSpreadOverlay(
                     EntityManager,
                     _eyeManager,
                     Timing,
@@ -65,7 +65,7 @@ public sealed partial class GunSystem : SharedGunSystem
             }
             else
             {
-                overlayManager.RemoveOverlay<GunSpreadOverlay>();
+                _overlayManager.RemoveOverlay<GunSpreadOverlay>();
             }
         }
     }