feat(4.x): merge 4.x into next

Author: ZakaryCode

docusaurus.config.js

@@ -77,7 +77,7 @@ const siteConfig = {
           lastVersion: '3.x',
           versions: {
             current: {
-              label: '下个版本',
+              label: '4.x',
             }
           }
         },

src/pages/versions.js

@@ -54,7 +54,7 @@ function Version () {
           <table>
             <tbody>
               <tr>
-                <th>Latest</th>
+                <th>4.x</th>
                 <td>
                   <Link to={useBaseUrl('/docs/next')}>
                     文档