Adding PAI Slot to PDA (#21086)

* Adding PAI Slot to PDA

* Update PdaComponent.cs

* Update pda.yml

* Update tags.yml

Sorting it alphabetically

* Adding PDA UI Elements.

* Addressing reviews

* Update PdaComponent.cs

* Update Content.Shared/PDA/SharedPdaSystem.cs

Co-authored-by: faint <46868845+ficcialfaint@users.noreply.github.com>

* Update Content.Shared/PDA/SharedPdaSystem.cs

Co-authored-by: faint <46868845+ficcialfaint@users.noreply.github.com>

* Update Resources/Prototypes/Entities/Objects/Devices/pda.yml

Co-authored-by: faint <46868845+ficcialfaint@users.noreply.github.com>

* Update PdaComponent.cs

* Update PdaComponent.cs

---------

Co-authored-by: faint <46868845+ficcialfaint@users.noreply.github.com>

Content.Shared/PDA/PdaComponent.cs

@@ -11,6 +11,7 @@ namespace Content.Shared.PDA
     {
         public const string PdaIdSlotId = "PDA-id";
         public const string PdaPenSlotId = "PDA-pen";
+        public const string PdaPaiSlotId = "PDA-pai";
 
         /// <summary>
         /// The base PDA sprite state, eg. "pda", "pda-clown"
@@ -23,6 +24,8 @@ namespace Content.Shared.PDA
 
         [DataField("penSlot")]
         public ItemSlot PenSlot = new();
+        [DataField("paiSlot")]
+        public ItemSlot PaiSlot = new();
 
         // Really this should just be using ItemSlot.StartingItem. However, seeing as we have so many different starting
         // PDA's and no nice way to inherit the other fields from the ItemSlot data definition, this makes the yaml much