Add command to toggle ghost visibility on the client (#27314)

* Add command to toggle ghost visibility on the client

* Fix description

* Fix index of arg parsing

* Allow setting GhostVisibility directly

Content.Client/Ghost/GhostSystem.cs

@@ -3,7 +3,6 @@ using Content.Shared.Actions;
 using Content.Shared.Ghost;
 using Robust.Client.Console;
 using Robust.Client.GameObjects;
-using Robust.Client.Graphics;
 using Robust.Client.Player;
 using Robust.Shared.Player;
 
@@ -177,9 +176,9 @@ namespace Content.Client.Ghost
             _console.RemoteExecuteCommand(null, "ghostroles");
         }
 
-        public void ToggleGhostVisibility()
+        public void ToggleGhostVisibility(bool? visibility = null)
         {
-            GhostVisibility = !GhostVisibility;
+            GhostVisibility = visibility ?? !GhostVisibility;
         }
     }
 }