(Re)Adds open bolt animations for gun sprites (#17219)

Co-authored-by: and_a <and_a@DESKTOP-RJENGIR>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Shared/Weapons/Ranged/Systems/SharedGunSystem.cs

@@ -307,6 +307,11 @@ public abstract partial class SharedGunSystem : EntitySystem
             // If they're firing an existing clip then don't play anything.
             if (shots > 0)
             {
+                if (ev.Reason != null)
+                {
+                    PopupSystem.PopupClient(ev.Reason, gunUid, user);
+                }
+
                 // Don't spam safety sounds at gun fire rate, play it at a reduced rate.
                 // May cause prediction issues? Needs more tweaking
                 gun.NextFire = TimeSpan.FromSeconds(Math.Max(lastFire.TotalSeconds + SafetyNextFire, gun.NextFire.TotalSeconds));
@@ -467,4 +472,5 @@ public enum AmmoVisuals : byte
     AmmoMax,
     HasAmmo, // used for generic visualizers. c# stuff can just check ammocount != 0
     MagLoaded,
+    BoltClosed,
 }