chore: add @babel/plugin-proposal-optional-chaining

Author: Amour1688

package.json

@@ -65,6 +65,7 @@
         "@babel/plugin-proposal-class-properties": "^7.8.3",
         "@babel/plugin-proposal-export-default-from": "^7.8.3",
         "@babel/plugin-proposal-object-rest-spread": "^7.9.6",
+        "@babel/plugin-proposal-optional-chaining": "^7.10.1",
         "@babel/plugin-transform-member-expression-literals": "^7.8.3",
         "@babel/plugin-transform-object-assign": "^7.8.3",
         "@babel/plugin-transform-property-literals": "^7.8.3",

webpack.config.js

@@ -37,7 +37,8 @@ module.exports = {
             ],
           ],
           plugins: [
-            ['@ant-design-vue/babel-plugin-jsx', { transformOn: true, compatibleProps: true }],
+            ['@ant-design-vue/babel-plugin-jsx', { transformOn: true }],
+            '@babel/plugin-proposal-optional-chaining',
             '@babel/plugin-transform-object-assign',
             '@babel/plugin-proposal-object-rest-spread',
             '@babel/plugin-proposal-export-default-from',
@@ -85,8 +86,6 @@ module.exports = {
     extensions: ['.js', '.jsx', '.vue'],
   },
   devServer: {
-    host: 'localhost',
-    port: 3002,
     historyApiFallback: {
       rewrites: [{ from: /./, to: '/index.html' }],
     },