fix: config add nav

src/config.json

@@ -27,6 +27,12 @@
         "show": true
       },
       {
+        "name": "theme-variable",
+        "cName": "动态主题",
+        "eName": "Variable Theme",
+        "show": true
+      },
+      {
         "name": "international",
         "cName": "国际化",
         "eName": "Internationalization",
@@ -46,6 +52,12 @@
         "show": true
       },
       {
+        "name": "migrate-from-v3",
+        "cName": "从 v3 升级到 v4",
+        "eName": "migrate-from-v3",
+        "show": true
+      },
+      {
         "name": "https://github.com/jdf2e/nutui/releases",
         "cName": "更新日志",
         "eName": "Changelog",