perf: improve the usage documentation of vben-vxe-table (#4829)

* perf: improve the usage documentation of vben-vxe-table

docs/src/demos/vben-vxe-table/form/index.vue

@@ -1,11 +1,11 @@
 <script lang="ts" setup>
 import type { VbenFormProps } from '#/adapter/form';
-import type { UseVbenVxeGrid, VxeGridProps } from '#/adapter/vxe-table';
-
-import { inject } from 'vue';
+import type { VxeGridProps } from '#/adapter/vxe-table';
 
 import { message } from 'ant-design-vue';
 
+import { useVbenVxeGrid } from '#/adapter/vxe-table';
+
 import { getExampleTableApi } from '../mock-api';
 
 interface RowType {
@@ -17,10 +17,6 @@ interface RowType {
   releaseDate: string;
 }
 
-const useVbenVxeGrid = inject<UseVbenVxeGrid>(
-  'useVbenVxeGrid',
-) as UseVbenVxeGrid;
-
 const formOptions: VbenFormProps = {
   // 默认展开
   collapsed: false,