Extracts magic strings from Tag calls (#36305)

* Extracts magic strings from Tag calls

When #36281 gets merged, the `TagSystem` methods will all give warnings. Let's fix those warnings before they even happen!

* Adds missing libraries

* Remove not yet implemented TagSystem changes

* Fix tag spelling error

Genuinely surprised there was only 1!

* Styling and proper type changes

* Styling

Co-authored-by: Tayrtahn <tayrtahn@gmail.com>

---------

Co-authored-by: Tayrtahn <tayrtahn@gmail.com>

Content.Shared/Hands/EntitySystems/SharedHandsSystem.Drop.cs

@@ -6,12 +6,16 @@ using Content.Shared.Inventory.VirtualItem;
 using Content.Shared.Tag;
 using Robust.Shared.Containers;
 using Robust.Shared.Map;
+using Robust.Shared.Prototypes;
 
 namespace Content.Shared.Hands.EntitySystems;
 
 public abstract partial class SharedHandsSystem
 {
     [Dependency] private readonly TagSystem _tagSystem = default!;
+
+    private static readonly ProtoId<TagPrototype> BypassDropChecksTag = "BypassDropChecks";
+
     private void InitializeDrop()
     {
         SubscribeLocalEvent<HandsComponent, EntRemovedFromContainerMessage>(HandleEntityRemoved);
@@ -37,7 +41,7 @@ public abstract partial class SharedHandsSystem
     private bool ShouldIgnoreRestrictions(EntityUid user)
     {
         //Checks if the Entity is something that shouldn't care about drop distance or walls ie Aghost
-        return !_tagSystem.HasTag(user, "BypassDropChecks");
+        return !_tagSystem.HasTag(user, BypassDropChecksTag);
     }
 
     /// <summary>