chore(manifest): disable ES6 transpilation in WeChat settings

- Disable ES6 transpilation by setting es6 flag to false
- Aligns with WeChat mini-program compatibility requirements
- Reduces build complexity and potential transpilation issues

manifest.json

@@ -95,7 +95,7 @@
         "libVersion" : "latest",
         "setting" : {
             "urlCheck" : false,
-            "es6" : true,
+            "es6" : false,
             "postcss" : true,
             "minified" : true
         },