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.Server/Revenant/EntitySystems/RevenantSystem.Abilities.cs

@@ -29,6 +29,7 @@ using Robust.Shared.Physics.Components;
 using Robust.Shared.Utility;
 using Robust.Shared.Map.Components;
 using Content.Shared.Whitelist;
+using Robust.Shared.Prototypes;
 
 namespace Content.Server.Revenant.EntitySystems;
 
@@ -44,6 +45,8 @@ public sealed partial class RevenantSystem
     [Dependency] private readonly SharedTransformSystem _transformSystem = default!;
     [Dependency] private readonly SharedMapSystem _mapSystem = default!;
 
+    private static readonly ProtoId<TagPrototype> WindowTag = "Window";
+
     private void InitializeAbilities()
     {
         SubscribeLocalEvent<RevenantComponent, UserActivateInWorldEvent>(OnInteract);
@@ -253,7 +256,7 @@ public sealed partial class RevenantSystem
         foreach (var ent in lookup)
         {
             //break windows
-            if (tags.HasComponent(ent) && _tag.HasTag(ent, "Window"))
+            if (tags.HasComponent(ent) && _tag.HasTag(ent, WindowTag))
             {
                 //hardcoded damage specifiers til i die.
                 var dspec = new DamageSpecifier();