Sortablejs: add missing callback 'onClone' (#31542)

* Sortablejs: add missing callback

The callback onClone was missing from the typings even though it is part of Sortablejs 1.7

* Added two other missing callbacks

onChoose and onUnchoose were also missing. Funnily enough, onUnchoose is missing also from the official documentation. But it is still a valid callback that should be documented.

types/sortablejs/index.d.ts

@@ -224,6 +224,18 @@ declare namespace Sortable {
          * Element is dropped into the list from another list
          */
         onAdd?: (event: SortableEvent) => void;
+        /**
+         * Created a clone of an element
+         */
+        onClone?: (event: SortableEvent) => void;
+        /**
+         * Element is chosen
+         */
+        onChoose?: (event: SortableEvent) => void;
+        /**
+         * Element is unchosen
+         */
+        onUnchoose?: (event: SortableEvent) => void;
         /**
          * Changed sorting within list
          */