feat(cli): set title by lang

packages/vant-cli/site/common/iframe-router.js

@@ -10,18 +10,18 @@ window.syncPath = function () {
   const currentDir = router.history.current.path;
 
   if (isInIframe) {
-    window.top.changePath(currentDir);
+    window.top.replacePath(currentDir);
   } else if (!isMobile) {
     const iframe = document.querySelector('iframe');
     if (iframe) {
       iframeReady(iframe, () => {
-        iframe.contentWindow.changePath(currentDir);
+        iframe.contentWindow.replacePath(currentDir);
       });
     }
   }
 };
 
-window.changePath = function (path = '') {
+window.replacePath = function (path = '') {
   // should preserve hash for anchor
   if (window.vueRouter.currentRoute.path !== path) {
     window.vueRouter.replace(path).catch(() => {});

packages/vant-cli/site/common/index.js

@@ -1,7 +1,7 @@
 function iframeReady(iframe, callback) {
   const doc = iframe.contentDocument || iframe.contentWindow.document;
   const interval = () => {
-    if (iframe.contentWindow.changePath) {
+    if (iframe.contentWindow.replacePath) {
       callback();
     } else {
       setTimeout(() => {