Fix tabletop error (#7830)

Content.Shared/Tabletop/Components/TabletopDraggableComponent.cs

@@ -0,0 +1,16 @@
+using Robust.Shared.GameStates;
+using Robust.Shared.Network;
+
+namespace Content.Shared.Tabletop.Components;
+
+/// <summary>
+/// Allows an entity to be dragged around by the mouse. The position is updated for all player while dragging.
+/// </summary>
+[NetworkedComponent]
+[RegisterComponent]
+public sealed class TabletopDraggableComponent : Component
+{
+    // The player dragging the piece
+    [ViewVariables]
+    public NetUserId? DraggingPlayer;
+}