feat: add control element reference to useCustomControl

Author: logaretm

packages/core/src/useCustomField/useCustomControl.ts

@@ -53,6 +53,11 @@ export function useCustomControl<TValue = unknown>(
      */
     controlId,
 
+    /**
+     * Reference to the control element.
+     */
+    controlEl,
+
     /**
      * Props for the control element/group.
      */