ctree适配vue3.0 (#42)

升成同时支持vue2和vue3

Author: zhuzhibin1995

.env.docs

@@ -1,4 +1,4 @@
 NODE_ENV=production
-VUE_APP_IS_BUILDING_DOCS=true
-VUE_APP_PUBLIC_PATH=/ctree
-VUE_APP_OUTPUT_DIR=docs
+VITE_IS_BUILDING_DOCS=true
+VITE_PUBLIC_PATH=/ctree
+VITE_OUTPUT_DIR=docs

babel.config.js

@@ -1,5 +1,7 @@
 module.exports = {
   presets: [
+    ['@babel/preset-env', {targets: {node: 'current'}}],
+    '@babel/preset-typescript',
     [
       '@vue/app',
       {