Seal/abstract/virtual everything (#6739)

Content.Server/Access/Components/PresetIdCardComponent.cs

@@ -7,7 +7,7 @@ using Robust.Shared.Serialization.Manager.Attributes;
 namespace Content.Server.Access.Components
 {
     [RegisterComponent]
-    public class PresetIdCardComponent : Component
+    public sealed class PresetIdCardComponent : Component
     {
         [DataField("job")]
         public readonly string? JobName;

Content.Server/Access/Systems/IdCardSystem.cs

@@ -17,7 +17,7 @@ using Robust.Shared.Random;
 
 namespace Content.Server.Access.Systems
 {
-    public class IdCardSystem : SharedIdCardSystem
+    public sealed class IdCardSystem : SharedIdCardSystem
     {
         [Dependency] private readonly InventorySystem _inventorySystem = default!;
         [Dependency] private readonly PopupSystem _popupSystem = default!;

Content.Server/Access/Systems/PresetIdCardSystem.cs

@@ -9,7 +9,7 @@ using System;
 
 namespace Content.Server.Access.Systems
 {
-    public class PresetIdCardSystem : EntitySystem
+    public sealed class PresetIdCardSystem : EntitySystem
     {
         [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
         [Dependency] private readonly IdCardSystem _cardSystem = default!;