feat: useVxeTable returns formApi instance (#4582)

packages/@core/ui-kit/form-ui/src/index.ts

@@ -1,11 +1,12 @@
 export { setupVbenForm } from './config';
+
 export type {
   BaseFormComponentType,
+  ExtendedFormApi,
   FormSchema as VbenFormSchema,
   VbenFormProps,
 } from './types';
 
 export * from './use-vben-form';
-
 // export { default as VbenForm } from './vben-form.vue';
 export * as z from 'zod';