优化下单流程

metro.config.js

@@ -0,0 +1,14 @@
+const { getDefaultConfig, mergeConfig } = require('@react-native/metro-config')
+const { getMetroConfig } = require('@tarojs/rn-supporter')
+
+/**
+ * Metro configuration
+ * https://facebook.github.io/metro/docs/configuration
+ *
+ * @type {import('metro-config').MetroConfig}
+ */
+const config = {}
+
+module.exports = (async function () {
+  return mergeConfig(getDefaultConfig(__dirname), await getMetroConfig(), config)
+})()