Refactor drag and drop to use a shared interface (#2012)

* WIP in progress hours

* Cleanup

* Fix bugle

* Fix nullable error

* Merge fixes

* Merge fixes

* Merge fixes

Content.Client/GameObjects/Components/Storage/StorableComponent.cs

@@ -0,0 +1,41 @@
+#nullable enable
+using Content.Shared.GameObjects.Components.Storage;
+using Robust.Shared.GameObjects;
+
+namespace Content.Client.GameObjects.Components.Storage
+{
+    [RegisterComponent]
+    [ComponentReference(typeof(SharedStorableComponent))]
+    public class StorableComponent : SharedStorableComponent
+    {
+        private int _size;
+
+        public override int Size
+        {
+            get => _size;
+            set
+            {
+                if (_size == value)
+                {
+                    return;
+                }
+
+                _size = value;
+
+                Dirty();
+            }
+        }
+
+        public override void HandleComponentState(ComponentState? curState, ComponentState? nextState)
+        {
+            base.HandleComponentState(curState, nextState);
+
+            if (!(curState is StorableComponentState state))
+            {
+                return;
+            }
+
+            _size = state.Size;
+        }
+    }
+}