fix: swipe item type error

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-vant",
-  "version": "0.0.21",
+  "version": "0.0.22",
   "description": "React Mobile UI Components base on Vant UI",
   "repository": "https://github.com/3lang3/react-vant.git",
   "main": "lib/index.js",

src/swipe/PropsType.ts

@@ -1,4 +1,4 @@
-import { ForwardRefExoticComponent, RefAttributes } from 'react';
+import { ForwardRefExoticComponent } from 'react';
 import { BaseTypeProps } from '../utils';
 
 export interface SwipeProps extends BaseTypeProps {
@@ -18,5 +18,5 @@ export interface SwipeProps extends BaseTypeProps {
 }
 
 export type SwipeStatic = {
-  Item?: ForwardRefExoticComponent<{ index: number }>;
+  Item: ForwardRefExoticComponent<{ index: number }>;
 };

src/swipe/Swipe.tsx

@@ -20,6 +20,7 @@ import SwipeContext from './SwipeContext';
 import { SwipeProps, SwipeStatic } from './PropsType';
 import { doubleRaf } from '../utils/raf';
 import { createNamespace, preventDefault, isHidden, range } from '../utils';
+import SwipeItem from './SwipeItem';
 
 const [bem] = createNamespace('swipe');
 
@@ -350,4 +351,6 @@ Swipe.defaultProps = {
   stopPropagation: true,
 };
 
+Swipe.Item = SwipeItem;
+
 export default Swipe;

src/swipe/index.tsx

@@ -1,6 +1,3 @@
 import Swipe from './Swipe';
-import SwipeItem from './SwipeItem';
-
-Swipe.Item = SwipeItem;
 
 export default Swipe;