api: add selected widget api

runelite-api/src/main/java/net/runelite/api/Client.java

@@ -1901,6 +1901,13 @@ public interface Client extends OAuthApi, GameEngine
 	 */
 	int getSelectedItemIndex();
 
+	/**
+	 * Get the selected widget, such as a selected spell or selected item (eg. "Use")
+	 * @return the selected widget
+	 */
+	@Nullable
+	Widget getSelectedWidget();
+
 	/**
 	 * Returns client item composition cache
 	 */

runelite-api/src/main/java/net/runelite/api/MenuAction.java

@@ -139,6 +139,7 @@ public enum MenuAction
 	WIDGET_TYPE_1(24),
 	/**
 	 * Select the widget for targeting other widgets/entites etc.
+	 * @see Client#getSelectedWidget()
 	 */
 	WIDGET_TARGET(25),
 	/**