Corner Clothing UI (#22883)

* Corner clothing (save point)

* IT WORKS. YIPPEE

* the last of it

* template rejigs

Content.Client/UserInterface/Systems/Inventory/Controls/ItemSlotUIContainer.cs

@@ -16,6 +16,14 @@ public abstract class ItemSlotUIContainer<T> : GridContainer, IItemslotUIContain
 {
     protected readonly Dictionary<string, T> Buttons = new();
 
+    private int? _maxColumns;
+
+    public int? MaxColumns
+    {
+        get => _maxColumns;
+        set => _maxColumns = value;
+    }
+
     public virtual bool TryAddButton(T newButton, out T button)
     {
         var tempButton = AddButton(newButton);
@@ -68,7 +76,7 @@ public abstract class ItemSlotUIContainer<T> : GridContainer, IItemslotUIContain
     {
         if (!Children.Contains(newButton) && newButton.Parent == null && newButton.SlotName != "")
             AddChild(newButton);
-        Columns = ChildCount;
+        Columns = _maxColumns ?? ChildCount;
         return AddButtonToDict(newButton);
     }