pref: config lazyCodeLoading

app.json

@@ -23,6 +23,7 @@
   "requiredPrivateInfos": [
     "chooseAddress"
   ],
+  "lazyCodeLoading": "requiredComponents",
   "usingComponents": {
     "van-icon": "@vant/weapp/icon/index",
     "van-overlay": "@vant/weapp/overlay/index",